VILMEN Christophe

VILMEN Christophe

Engineer

at CNRS

Infrastructure Manager

Engineer

Download my Resume (FR / EN)

Detailed Activities

1) Instrumentation engineering
Conception – Realization and exploitation of instrumental devices in MRI/MRS environment:
MRI probeheads small animal.
Several cradles for the strictly noninvasive functional investigation of the muscle of rat and mice.
Design of human ergometers (electronics, mechanics) @ 1,5T/ 3T and 7T.
Electronical devices

2) Maintenance
Ensuring device availiability and infracstructure requirements

3) New works
Planning and site follow-up

Keywords

  • Metabolism
  • Ultra-high field MRI
  • X-Nuclei
  • MRI / MRS probeheads
  • Instrumentation engineering
  • Electronical engineering
  • Skeletal muscle performance

General Information

Scientific collaborations:
– H2020 Project: Institut Fresnel and international consortium MCube integrating 8 international partners, led by AMU, related to the engineering for the application in MRI.
– Carnot Project (STAR Carnot Institute)
For theses 2 projects, conducting experiments for the development of MRI antennas for preclinical aspect and the complete construction of these for clinical applications.

Teaching

Supervision of students, Master and engineering schools involved in projects:
follow-up and help with the oral defense of the internship report.

Publications :

180164 VILMEN 1 harvard-cite-them-right-no-et-al 50 date desc year 2606 https://crmbm.univ-amu.fr/wp-content/plugins/zotpress/
%7B%22status%22%3A%22success%22%2C%22updateneeded%22%3Afalse%2C%22instance%22%3Afalse%2C%22meta%22%3A%7B%22request_last%22%3A50%2C%22request_next%22%3A50%2C%22used_cache%22%3Atrue%7D%2C%22data%22%3A%5B%7B%22key%22%3A%22QNS6WJWJ%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Tikhonenko%20et%20al.%22%2C%22parsedDate%22%3A%222025-11-13%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BTikhonenko%2C%20D.%2C%20Rustomji%2C%20K.%2C%20Vilmen%2C%20C.%2C%20Durand%2C%20A.%2C%20Nouari%2C%20G.%2C%20Enoch%2C%20S.%2C%20Bendahan%2C%20D.%2C%20Abdeddaim%2C%20R.%20and%20Dubois%2C%20M.%20%282025%29%20%26%23x201C%3BOptimal%20excitation%20of%20single%20mode%20resonators%3A%20demonstration%20with%20a%203%26%23xA0%3BT%20MRI%20metasolenoid%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BJournal%20of%20Magnetic%20Resonance%20%28San%20Diego%2C%20Calif.%3A%201997%29%26lt%3B%5C%2Fi%26gt%3B%2C%20382%2C%20p.%20107992.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.jmr.2025.107992%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.jmr.2025.107992%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Optimal%20excitation%20of%20single%20mode%20resonators%3A%20demonstration%20with%20a%203%5Cu00a0T%20MRI%20metasolenoid%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Dmitrii%22%2C%22lastName%22%3A%22Tikhonenko%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Kaizad%22%2C%22lastName%22%3A%22Rustomji%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Arnaud%22%2C%22lastName%22%3A%22Durand%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Georges%22%2C%22lastName%22%3A%22Nouari%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Stefan%22%2C%22lastName%22%3A%22Enoch%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Redha%22%2C%22lastName%22%3A%22Abdeddaim%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Marc%22%2C%22lastName%22%3A%22Dubois%22%7D%5D%2C%22abstractNote%22%3A%22Wireless%20passive%20resonators%20have%20been%20developed%20to%20inductively%20couple%20to%20the%20birdcage%20body%20coil.%20Such%20systems%20have%20been%20explored%20in%20the%20form%20of%20ceramic%20resonators%20with%20high%20permittivity%20but%20also%20with%20metamaterial%20or%20metasurface%20devices%20that%20can%20exhibit%20resonant%20behaviour%20at%20a%20given%20Larmor%20frequency.%20The%20resonant%20focusing%20of%20the%20radiofrequency%20field%20is%20used%20to%20lower%20the%20input%20power%20during%20transmission%20and%20improve%20the%20sensitivity%20of%20the%20body%20coil%20during%20reception.%20The%20gain%20is%20only%20obtained%20in%20a%20limited%20volume%20located%20within%20or%20close%20to%20the%20resonant%20structure.%20Typically%2C%20such%20passive%20devices%20do%20not%20support%20parallel%20imaging%20and%20demonstrated%20limited%20SNR%20enhancement%20compared%20to%20dense%20multichannel%20receive%20arrays.%20Nonetheless%2C%20these%20resonators%20have%20seen%20recent%20development%20with%20applications%20to%20wrist%20or%20breast%20MRI%20mostly%20in%201.5%5Cu00a0T%20MRI%20scanners.%20Here%20we%20propose%20to%20design%2C%20build%2C%20and%20study%20a%20metasolenoid%20resonator%20operating%20at%203%5Cu00a0T.%20The%20metasolenoid%20was%20characterized%20on%20phantom%20to%20validate%20the%20B1%20efficiency%20increase%20with%20respect%20to%20the%20birdcage%20polarization%20excitation.%20We%20reported%20a%20high%20B1%20efficiency%20gain%20for%20circularly%20%283.2-fold%29%20and%20linearly%20%285.8-fold%29%20polarized%20excitation.%20Consequently%2C%20and%20according%20to%20analytical%20calculations%2C%20we%20demonstrated%20that%20when%20excited%20with%20linearly%20polarized%20excitation%2C%20the%20metasolenoid%20had%20a%20B1%20efficiency%2026%5Cu00a0%25%20higher%20when%20excited%20by%20the%20default%20circularly%20polarized%20excitation.%20Numerical%20simulations%20on%20voxel%20model%20showed%20that%20in%20presence%20of%20the%20resonator%20the%20B1%20efficiency%20gain%20normalized%20by%20the%20maximum%20local%20SAR%20was%20significantly%20improved%20when%20introducing%20the%20metasolenoid%20but%20the%20influence%20of%20the%20excitation%20polarization%20was%20reduced%20to%20a%20few%20percent.%22%2C%22date%22%3A%222025-11-13%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1016%5C%2Fj.jmr.2025.107992%22%2C%22ISSN%22%3A%221096-0856%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%227FK4UDH9%22%2C%22NW6SZQBR%22%5D%2C%22dateModified%22%3A%222025-11-21T08%3A17%3A20Z%22%7D%7D%2C%7B%22key%22%3A%22HVQM5KRK%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Jouenne%20et%20al.%22%2C%22parsedDate%22%3A%222025-06-06%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BJouenne%2C%20A.%2C%20Sourdon%2C%20J.%2C%20Varlet%2C%20I.%2C%20Vilmen%2C%20C.%2C%20Kober%2C%20F.%2C%20Landrier%2C%20J.F.%2C%20Bernard%2C%20M.%20and%20Desrois%2C%20M.%20%282025%29%20%26%23x201C%3BResveratrol%20protection%20against%20cardiac%20remodeling%20and%20ischemia-reperfusion%20injury%20associated%20with%20hepatic%20lipid%20metabolism%20ameliorations%20and%20adipose%20tissue%20autotaxin%20pathway%20inhibition%20in%20a%20diet%20induced%20prediabetic%20female%20rat%20model%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BThe%20Journal%20of%20Nutritional%20Biochemistry%26lt%3B%5C%2Fi%26gt%3B%2C%20p.%20109992.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.jnutbio.2025.109992%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.jnutbio.2025.109992%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Resveratrol%20protection%20against%20cardiac%20remodeling%20and%20ischemia-reperfusion%20injury%20associated%20with%20hepatic%20lipid%20metabolism%20ameliorations%20and%20adipose%20tissue%20autotaxin%20pathway%20inhibition%20in%20a%20diet%20induced%20prediabetic%20female%20rat%20model%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22A.%22%2C%22lastName%22%3A%22Jouenne%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22J.%22%2C%22lastName%22%3A%22Sourdon%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22I.%22%2C%22lastName%22%3A%22Varlet%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22C.%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22F.%22%2C%22lastName%22%3A%22Kober%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22J.%20F.%22%2C%22lastName%22%3A%22Landrier%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22M.%22%2C%22lastName%22%3A%22Bernard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22M.%22%2C%22lastName%22%3A%22Desrois%22%7D%5D%2C%22abstractNote%22%3A%22Prediabetes%20is%20associated%20with%20an%20increased%20CV%20risk%2C%20especially%20for%20women.%20Recent%20evidence%20highlights%20the%20importance%20of%20liver%20and%20adipose%20tissue%20%28AT%29%20in%20its%20stratification.%20Current%20therapeutic%20strategies%20lack%20cardioprotective%20effects%20in%20this%20context.%20We%20evaluated%20the%20cardioprotective%20effects%20of%20resveratrol%20supplementation%20versus%20diet%20intervention%20and%20their%20association%20with%20hepatic%20and%20AT%20alterations%20in%20prediabetic%20female%20rats%20submitted%20to%20a%20high-fat-high-sucrose%20diet%20%28HFS%29.%20Female%20Wistar%20rats%20were%20divided%20into%204%20groups%20fed%20for%205%20months%20with%3A%20standard%20diet%20%28CTRL%29%2C%20HFS%20diet%20%28HFS%29%2C%20HFS%20diet%20supplemented%20for%20the%20last%202%20months%20with%20resveratrol%20%28RSV%29%20or%202%20months%20of%20standard%20diet%20after%203%20months%20of%20HFS%20diet%20%28RSD%29.%20In%20vivo%20MRI%20was%20performed%20to%20study%20cardiac%20morphology%2C%20function%20and%20perfusion.%20Tolerance%20to%20ischemia-reperfusion%20%28IR%29%20injury%20was%20investigated%20ex%20vivo%20by%20a%20simultaneous%20measurement%20of%20cardiac%20function%20and%20energy%20metabolism%20with%2031P%20MRS.%20Hepatic%20steatosis%2C%20along%20with%20hepatic%20and%20AT%20lipid%20metabolism%20and%20inflammation%20gene%20expression%2C%20was%20studied.%20HFS%20induced%20glucose%20intolerance%2C%20hepatic%20steatosis%2C%20higher%20diastolic%20LV%20volume%2C%20wall%20thickness%2C%20heart%20weight%20to%20tibia%20length%20ratio%20and%20altered%20myocardial%20tolerance%20to%20IR%2C%20with%20reduced%20function%20and%20energy%20metabolism.%20Both%20approaches%20improved%20glucose%20tolerance%2C%20reduced%20hepatic%20steatosis%20with%20lipid%20oxidation%20genes%20expression%20and%20ameliorated%20myocardial%20tolerance%20to%20IR.%20However%2C%20only%20RSV%20inhibited%20deleterious%20cardiac%20remodeling%20and%20autotaxin%20AT%20expression%20and%20plasma%20levels%20induced%20by%20HFS%20diet.%20RSV%20exhibited%20better%20cardioprotection%20than%20RSD%2C%20along%20with%20decreased%20hepatic%20steatosis%20and%20AT%20derived%20ATX%2C%20suggesting%20its%20protective%20potential%20against%20early%20cardiac%20alterations%20associated%20with%20prediabetes%20and%20NAFLD.%22%2C%22date%22%3A%222025-06-06%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1016%5C%2Fj.jnutbio.2025.109992%22%2C%22ISSN%22%3A%221873-4847%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%227FK4UDH9%22%2C%225Z6CVJGB%22%2C%226AT58F9E%22%2C%226B37I9FA%22%2C%22BR9D2SS4%22%2C%22KUHF8SUR%22%5D%2C%22dateModified%22%3A%222025-11-19T13%3A59%3A22Z%22%7D%7D%2C%7B%22key%22%3A%22S2J8WZ96%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Michel%20et%20al.%22%2C%22parsedDate%22%3A%222024-03-29%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BMichel%2C%20C.P.%2C%20Messonnier%2C%20L.A.%2C%20Giannesini%2C%20B.%2C%20Vilmen%2C%20C.%2C%20Sourdon%2C%20J.%2C%20Le%20Fur%2C%20Y.%20and%20Bendahan%2C%20D.%20%282024%29%20%26%23x201C%3BEndurance%20training%20and%20hydroxyurea%20have%20synergistic%20effects%20on%20muscle%20function%20and%20energetics%20in%20sickle%20cell%20disease%20mice%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BBlood%20Cells%2C%20Molecules%20%26amp%3B%20Diseases%26lt%3B%5C%2Fi%26gt%3B%2C%20107%2C%20p.%20102853.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.bcmd.2024.102853%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.bcmd.2024.102853%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Endurance%20training%20and%20hydroxyurea%20have%20synergistic%20effects%20on%20muscle%20function%20and%20energetics%20in%20sickle%20cell%20disease%20mice%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Constance%20P.%22%2C%22lastName%22%3A%22Michel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Laurent%20A.%22%2C%22lastName%22%3A%22Messonnier%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Benoit%22%2C%22lastName%22%3A%22Giannesini%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Joevin%22%2C%22lastName%22%3A%22Sourdon%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%5D%2C%22abstractNote%22%3A%22Sickle%20cell%20disease%20%28SCD%29%20is%20an%20hemoglobinopathy%20resulting%20in%20the%20production%20of%20an%20abnormal%20Hb%20%28HbS%29%20which%20can%20polymerize%20in%20deoxygenated%20conditions%2C%20leading%20to%20the%20sickling%20of%20red%20blood%20cells%20%28RBC%29.%20These%20alterations%20can%20decrease%20the%20oxygen-carrying%20capacity%20leading%20to%20impaired%20function%20and%20energetics%20of%20skeletal%20muscle.%20Any%20strategy%20which%20could%20reverse%20the%20corresponding%20defects%20could%20be%20of%20interest.%20In%20SCD%2C%20endurance%20training%20is%20known%20to%20improve%20multiples%20muscle%20properties%20which%20restores%20patient%26%23039%3Bs%20exercise%20capacity%20but%20present%20reduced%20effects%20in%20anemic%20patients.%20Hydroxyurea%20%28HU%29%20can%20increase%20fetal%20hemoglobin%20production%20which%20can%20reduce%20anemia%20in%20patients.%20The%20present%20study%20was%20conducted%20to%20determine%20whether%20HU%20can%20improve%20the%20effects%20of%20endurance%20training%20to%20improve%20muscle%20function%20and%20energetics.%20Twenty%20SCD%20Townes%20mice%20have%20been%20trained%20for%208%5Cu00a0weeks%20with%20%28n%5Cu00a0%3D%5Cu00a011%29%20or%20without%20%28n%5Cu00a0%3D%5Cu00a09%29%20HU.%20SCD%20mice%20muscle%20function%20and%20energetics%20were%20analyzed%20during%20a%20standardized%20rest-exercise-recovery%20protocol%2C%20using%20Phosphorus-31%20Magnetic%20resonance%20spectroscopy%20%2831P-MRS%29%20and%20transcutaneous%20stimulation.%20The%20combination%20of%20training%20and%20HU%20specifically%20decreased%20fatigue%20index%20and%20PCr%20consumption%20while%20muscle%20oxidative%20capacity%20was%20improved.%20These%20results%20illustrate%20the%20potential%20synergistic%20effects%20of%20endurance%20training%20and%20HU%20on%20muscle%20function%20and%20energetics%20in%20sickle%20cell%20disease.%22%2C%22date%22%3A%222024-03-29%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1016%5C%2Fj.bcmd.2024.102853%22%2C%22ISSN%22%3A%221096-0961%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22ZP8JD3DQ%22%5D%2C%22dateModified%22%3A%222025-09-12T07%3A59%3A27Z%22%7D%7D%2C%7B%22key%22%3A%22TAQA93I8%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Michel%20et%20al.%22%2C%22parsedDate%22%3A%222023-02%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BMichel%2C%20C.P.%2C%20Bendahan%2C%20D.%2C%20Giannesini%2C%20B.%2C%20Vilmen%2C%20C.%2C%20Le%20Fur%2C%20Y.%20and%20Messonnier%2C%20L.A.%20%282023%29%20%26%23x201C%3BEffects%20of%20hydroxyurea%20on%20skeletal%20muscle%20energetics%20and%20force%20production%20in%20a%20sickle%20cell%20disease%20murine%20model%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BJournal%20of%20Applied%20Physiology%26lt%3B%5C%2Fi%26gt%3B%2C%20134%282%29%2C%20pp.%20415%26%23x2013%3B425.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1152%5C%2Fjapplphysiol.00333.2022%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1152%5C%2Fjapplphysiol.00333.2022%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Effects%20of%20hydroxyurea%20on%20skeletal%20muscle%20energetics%20and%20force%20production%20in%20a%20sickle%20cell%20disease%20murine%20model%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Constance%20P.%22%2C%22lastName%22%3A%22Michel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Benoit%22%2C%22lastName%22%3A%22Giannesini%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Laurent%20A.%22%2C%22lastName%22%3A%22Messonnier%22%7D%5D%2C%22abstractNote%22%3A%22Download%20figureDownload%20PowerPoint%22%2C%22date%22%3A%222023-02%22%2C%22language%22%3A%22%22%2C%22DOI%22%3A%2210.1152%5C%2Fjapplphysiol.00333.2022%22%2C%22ISSN%22%3A%228750-7587%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fjournals.physiology.org%5C%2Fdoi%5C%2Fabs%5C%2F10.1152%5C%2Fjapplphysiol.00333.2022%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%226DHTGFMA%22%2C%22ZP8JD3DQ%22%5D%2C%22dateModified%22%3A%222024-05-03T05%3A40%3A15Z%22%7D%7D%2C%7B%22key%22%3A%22H9RAVRWA%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Meimoun%20et%20al.%22%2C%22parsedDate%22%3A%222022-09-02%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BMeimoun%2C%20L.%2C%20Pecchi%2C%20%26%23xC9%3B.%2C%20Vilmen%2C%20C.%2C%20Bendahan%2C%20D.%20and%20Giannesini%2C%20B.%20%282022%29%20%26%23x201C%3BEffect%20of%20citrulline%20malate%20supplementation%20on%20muscle%20function%20and%20bioenergetics%20during%20short-term%20repeated%20bouts%20of%20fatiguing%20exercise%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BJournal%20of%20Sports%20Sciences%26lt%3B%5C%2Fi%26gt%3B%2C%2040%2817%29%2C%20pp.%201981%26%23x2013%3B1990.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-ItemURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1080%5C%2F02640414.2022.2123527%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1080%5C%2F02640414.2022.2123527%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Effect%20of%20citrulline%20malate%20supplementation%20on%20muscle%20function%20and%20bioenergetics%20during%20short-term%20repeated%20bouts%20of%20fatiguing%20exercise%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Laura%22%2C%22lastName%22%3A%22Meimoun%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22%5Cu00c9milie%22%2C%22lastName%22%3A%22Pecchi%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Beno%5Cu00eet%22%2C%22lastName%22%3A%22Giannesini%22%7D%5D%2C%22abstractNote%22%3A%22Citrulline%20malate%20%28CM%29%20has%20been%20shown%20to%20improve%20muscle%20performance%20in%20healthy%20participants%20during%20a%20single%20exercise%20session.%20Yet%2C%20within%20the%20framework%20of%20exercises%20repeated%20at%20close%20time%20interval%2C%20the%20consequences%20of%20CM%20ingestion%20on%20mechanical%20performance%20are%20controversial%20and%20the%20bioenergetics%20side%20remains%20undocumented.%20The%20aim%20of%20this%20double-blind%20placebo-controlled%20study%20was%20to%20evaluate%20in%20vivo%20the%20effect%20of%20short-term%20%287%20doses%20in%2048%20h%29%20oral%20administration%20of%20CM%20upon%20gastrocnemius%20muscle%20function%20and%20bioenergetics%20using%20non-invasive%20multimodal%20NMR%20techniques%20in%20healthy%20rats.%20The%20experimental%20protocol%20consisted%20of%20two%206-min%20bouts%20of%20fatiguing%20exercise%20spaced%20by%20an%208-min%20recovery%20period.%20CM%20treatment%20did%20not%20affect%20the%20basal%20bioenergetics%20status%20and%20increased%20the%20half-fatigue%20time%20during%20the%20first%20exercise%20bout.%20With%20exercise%20repetition%2C%20it%20prevented%20PCr%20cost%20alteration%20and%20decreased%20both%20the%20glycolytic%20ATP%20production%20and%20the%20contractile%20ATP%20cost%20in%20working%20muscle%2C%20but%20these%20changes%20were%20not%20associated%20to%20any%20improvement%20in%20mechanical%20performance.%20In%20addition%2C%20CM%20did%20not%20influence%20the%20replenishment%20of%20high-energy%20phosphorylated%20compounds%20during%20the%20post-exercise%20recovery%20periods.%20Therefore%2C%20short-term%20CM%20administration%20enhances%20muscle%20bioenergetics%20throughout%20fatiguing%20bouts%20of%20exercise%20repeated%20at%20close%20time%20interval%20but%20this%20enhancement%20does%20not%20benefit%20to%20mechanical%20performance.%22%2C%22date%22%3A%222022-09-02%22%2C%22language%22%3A%22%22%2C%22DOI%22%3A%2210.1080%5C%2F02640414.2022.2123527%22%2C%22ISSN%22%3A%220264-0414%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1080%5C%2F02640414.2022.2123527%22%2C%22collections%22%3A%5B%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%226DHTGFMA%22%5D%2C%22dateModified%22%3A%222023-12-15T10%3A50%3A30Z%22%7D%7D%2C%7B%22key%22%3A%22ZWKZEZH3%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Michel%20et%20al.%22%2C%22parsedDate%22%3A%222022%22%2C%22numChildren%22%3A0%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BMichel%2C%20C.P.%2C%20Messonnier%2C%20L.A.%2C%20Giannesini%2C%20B.%2C%20Chatel%2C%20B.%2C%20Vilmen%2C%20C.%2C%20Le%20Fur%2C%20Y.%20and%20Bendahan%2C%20D.%20%282022%29%20%26%23x201C%3BEffects%20of%20Hydroxyurea%20on%20Skeletal%20Muscle%20Energetics%20and%20Function%20in%20a%20Mildly%20Anemic%20Mouse%20Model%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BFrontiers%20in%20Physiology%26lt%3B%5C%2Fi%26gt%3B%2C%2013%2C%20p.%20915640.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.3389%5C%2Ffphys.2022.915640%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.3389%5C%2Ffphys.2022.915640%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Effects%20of%20Hydroxyurea%20on%20Skeletal%20Muscle%20Energetics%20and%20Function%20in%20a%20Mildly%20Anemic%20Mouse%20Model%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Constance%20P.%22%2C%22lastName%22%3A%22Michel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Laurent%20A.%22%2C%22lastName%22%3A%22Messonnier%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Benoit%22%2C%22lastName%22%3A%22Giannesini%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Benjamin%22%2C%22lastName%22%3A%22Chatel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%5D%2C%22abstractNote%22%3A%22Hydroxyurea%20%28HU%29%20is%20a%20ribonucleotide%20reductase%20inhibitor%20most%20commonly%20used%20as%20a%20therapeutic%20agent%20in%20sickle%20cell%20disease%20%28SCD%29%20with%20the%20aim%20of%20reducing%20the%20risk%20of%20vaso-occlusion%20and%20improving%20oxygen%20transport%20to%20tissues.%20Previous%20studies%20suggest%20that%20HU%20may%20be%20even%20beneficial%20in%20mild%20anemia.%20However%2C%20the%20corresponding%20effects%20on%20skeletal%20muscle%20energetics%20and%20function%20have%20never%20been%20reported%20in%20such%20a%20mild%20anemia%20model.%20Seventeen%20mildly%20anemic%20HbAA%20Townes%20mice%20were%20subjected%20to%20a%20standardized%20rest-stimulation%20%28transcutaneous%20stimulation%29-protocol%20while%20muscle%20energetics%20using%2031Phosphorus%20magnetic%20resonance%20spectroscopy%20and%20muscle%20force%20production%20were%20assessed%20and%20recorded.%20Eight%20mice%20were%20supplemented%20with%20hydroxyurea%20%28HU%29%20for%206%20weeks%20while%209%20were%20not%20%28CON%29.%20HU%20mice%20displayed%20a%20higher%20specific%20total%20force%20production%20compared%20to%20the%20CON%2C%20with%20501.35%20%5Cu00b1%2054.12%5Cu00a0N%5C%2Fmm3%20and%20437.43%20%5Cu00b1%2057.10%5Cu00a0N%5C%2Fmm3%20respectively%20%28%2B14.6%25%2C%20p%20%26lt%3B%200.05%29.%20Neither%20the%20total%20rate%20of%20energy%20consumption%20nor%20the%20oxidative%20metabolic%20rate%20were%20significantly%20different%20between%20groups.%20The%20present%20results%20illustrated%20a%20positive%20effect%20of%20a%20HU%20chronic%20supplementation%20on%20skeletal%20muscle%20function%20in%20mice%20with%20mild%20anemia.%22%2C%22date%22%3A%222022%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.3389%5C%2Ffphys.2022.915640%22%2C%22ISSN%22%3A%221664-042X%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%226DHTGFMA%22%2C%22HIWENPPK%22%2C%22ZP8JD3DQ%22%5D%2C%22dateModified%22%3A%222024-05-03T05%3A40%3A16Z%22%7D%7D%2C%7B%22key%22%3A%22IK9SV2R9%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Chatel%20et%20al.%22%2C%22parsedDate%22%3A%222021-03-01%22%2C%22numChildren%22%3A3%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BChatel%2C%20B.%2C%20Bernit%2C%20E.%2C%20Vilmen%2C%20C.%2C%20Michel%2C%20C.%2C%20Bendahan%2C%20D.%20and%20Messonnier%2C%20L.A.%20%282021%29%20%26%23x201C%3BIn%20vivo%20muscle%20function%20and%20energetics%20in%20women%20with%20sickle%20cell%20anemia%20or%20trait%3A%20a%2031P-magnetic%20resonance%20spectroscopy%20study%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BJournal%20of%20Applied%20Physiology%20%28Bethesda%2C%20Md.%3A%201985%29%26lt%3B%5C%2Fi%26gt%3B%2C%20130%283%29%2C%20pp.%20737%26%23x2013%3B745.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1152%5C%2Fjapplphysiol.00790.2020%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1152%5C%2Fjapplphysiol.00790.2020%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22In%20vivo%20muscle%20function%20and%20energetics%20in%20women%20with%20sickle%20cell%20anemia%20or%20trait%3A%20a%2031P-magnetic%20resonance%20spectroscopy%20study%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Benjamin%22%2C%22lastName%22%3A%22Chatel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Emmanuelle%22%2C%22lastName%22%3A%22Bernit%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Constance%22%2C%22lastName%22%3A%22Michel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Laurent%20A.%22%2C%22lastName%22%3A%22Messonnier%22%7D%5D%2C%22abstractNote%22%3A%22Sickle%20cell%20anemia%20%28SCA%29%20is%20a%20genetic%20hemoglobinopathy%20associated%20with%20an%20impaired%20oxygen%20delivery%20to%20skeletal%20muscle%20that%20could%20alter%20ATP%20production%20processes%20and%20increase%20intramuscular%20acidosis.%20These%20alterations%20have%20been%20already%20reported%20in%20the%20Townes%20mouse%20model%20of%20SCA%20but%20the%20corresponding%20changes%20in%20humans%20have%20not%20been%20documented.%20In%20the%20present%20study%2C%20we%20used%2031-phosphorus%20magnetic%20resonance%20spectroscopy%20to%20investigate%20in%20vivo%20the%20metabolic%20changes%20induced%20by%20a%20moderate-intensity%20exercise%20in%20twelve%20SCA%20patients%2C%20eight%20sickle%20cell%20trait%20%28SCT%29%20carriers%2C%20and%20twelve%20controls%20women.%20The%20rest-exercise-recovery%20protocol%20disclosed%20slight%20differences%20regarding%20phosphocreatine%20%28PCr%29%20consumption%20and%20lactate%20accumulation%20between%20SCA%20patients%20and%20controls%20but%20these%20differences%20did%20not%20reach%20a%20statistical%20significance.%20On%20that%20basis%2C%20the%20in%20vivo%20metabolic%20changes%20associated%20with%20a%20moderate-intensity%20muscle%20exercise%20were%20slightly%20altered%20in%20SCA%20patients%20and%20SCT%20carriers%20but%20within%20a%20normal%20range.%20The%20present%20results%20strongly%20support%20the%20fact%20that%20a%20moderate-intensity%20exercise%20is%20safe%20and%20could%20be%20recommended%20in%20stable%20SCA%20patients%20and%20SCT%20subjects.NEW%20%26amp%3B%20NOTEWORTHY%20The%20main%20finding%20of%20the%20present%20study%20was%20that%20the%20metabolic%20changes%20associated%20with%20a%20moderate-intensity%20muscle%20exercise%20were%20slightly%20modified%20in%20stable%20sickle%20cell%20anemia%20patients%20and%20sickle%20cell%20trait%20carriers%20as%20compared%20to%20controls%20but%20still%20in%20the%20normal%20range.%20The%20present%20results%20strongly%20support%20the%20safety%20of%20a%20moderate-intensity%20exercise%20for%20stable%20sickle%20cell%20anemia%20patients%20and%20sickle%20cell%20trait%20carriers.%22%2C%22date%22%3A%222021-03-01%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1152%5C%2Fjapplphysiol.00790.2020%22%2C%22ISSN%22%3A%221522-1601%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%22HIWENPPK%22%2C%22ZP8JD3DQ%22%5D%2C%22dateModified%22%3A%222024-05-03T05%3A40%3A16Z%22%7D%7D%2C%7B%22key%22%3A%22P67D95QK%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Hurshkainen%20et%20al.%22%2C%22parsedDate%22%3A%222020%22%2C%22numChildren%22%3A0%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BHurshkainen%2C%20A.%2C%20Dubois%2C%20M.%2C%20Nikulin%2C%20A.%2C%20Vilmen%2C%20C.%2C%20Bendahan%2C%20D.%2C%20Enoch%2C%20S.%2C%20Glybovski%2C%20S.%20and%20Abdeddaim%2C%20R.%20%282020%29%20%26%23x201C%3BRadio%20Frequency%20Coil%20for%20Dual-Nuclei%20MR%20Muscle%20Energetics%20Investigation%20Based%20on%20Two%20Capacitively%20Coupled%20Periodic%20Wire%20Arrays%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BIEEE%20Antennas%20and%20Wireless%20Propagation%20Letters%26lt%3B%5C%2Fi%26gt%3B%2C%2019%285%29%2C%20pp.%20721%26%23x2013%3B725.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1109%5C%2FLAWP.2019.2960610%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1109%5C%2FLAWP.2019.2960610%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Radio%20Frequency%20Coil%20for%20Dual-Nuclei%20MR%20Muscle%20Energetics%20Investigation%20Based%20on%20Two%20Capacitively%20Coupled%20Periodic%20Wire%20Arrays%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Anna%22%2C%22lastName%22%3A%22Hurshkainen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Marc%22%2C%22lastName%22%3A%22Dubois%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Anton%22%2C%22lastName%22%3A%22Nikulin%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Stefan%22%2C%22lastName%22%3A%22Enoch%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Stanislav%22%2C%22lastName%22%3A%22Glybovski%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Redha%22%2C%22lastName%22%3A%22Abdeddaim%22%7D%5D%2C%22abstractNote%22%3A%22%22%2C%22date%22%3A%225%5C%2F2020%22%2C%22language%22%3A%22%22%2C%22DOI%22%3A%2210.1109%5C%2FLAWP.2019.2960610%22%2C%22ISSN%22%3A%221536-1225%2C%201548-5757%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fieeexplore.ieee.org%5C%2Fdocument%5C%2F8989835%5C%2F%22%2C%22collections%22%3A%5B%22NW6SZQBR%22%5D%2C%22dateModified%22%3A%222024-11-21T08%3A41%3A42Z%22%7D%7D%2C%7B%22key%22%3A%22CL7JYQAL%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Chatel%20et%20al.%22%2C%22parsedDate%22%3A%222019%22%2C%22numChildren%22%3A3%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BChatel%2C%20B.%2C%20Messonnier%2C%20L.A.%2C%20Vilmen%2C%20C.%2C%20Bernard%2C%20M.%2C%20Pialoux%2C%20V.%20and%20Bendahan%2C%20D.%20%282019%29%20%26%23x201C%3BIschaemia-induced%20muscle%20metabolic%20abnormalities%20are%20poorly%20alleviated%20by%20endurance%20training%20in%20a%20mouse%20model%20of%20sickle%20cell%20disease%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BExperimental%20Physiology%26lt%3B%5C%2Fi%26gt%3B%2C%20104%283%29%2C%20pp.%20398%26%23x2013%3B406.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1113%5C%2FEP087430%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1113%5C%2FEP087430%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Ischaemia-induced%20muscle%20metabolic%20abnormalities%20are%20poorly%20alleviated%20by%20endurance%20training%20in%20a%20mouse%20model%20of%20sickle%20cell%20disease%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Benjamin%22%2C%22lastName%22%3A%22Chatel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Laurent%20A.%22%2C%22lastName%22%3A%22Messonnier%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Monique%22%2C%22lastName%22%3A%22Bernard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Vincent%22%2C%22lastName%22%3A%22Pialoux%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%5D%2C%22abstractNote%22%3A%22New%20Findings%20What%20is%20the%20central%20question%20of%20this%20study%3F%20The%20aim%20of%20this%20study%20was%20to%20evaluate%20the%20potential%20beneficial%20effects%20of%20endurance%20training%20during%20an%20ischaemia%5Cu2013reperfusion%20protocol%20in%20a%20mouse%20model%20of%20sickle%20cell%20disease%20%28SCD%29.%20What%20is%20the%20main%20finding%20and%20its%20importance%3F%20Endurance%20training%20did%20not%20reverse%20the%20metabolic%20defects%20induced%20by%20a%20simulated%20vaso-occlusive%20crisis%20in%20SCD%20mice%2C%20with%20regard%20to%20intramuscular%20acidosis%2C%20mitochondrial%20dysfunction%20or%20anatomical%20properties.%20Our%20results%20suggest%20that%20endurance%20training%20would%20reduce%20the%20number%20of%20vaso-occlusive%20crises%20rather%20than%20the%20complications%20related%20to%20vaso-occlusive%20crises.%20Abstract%20The%20aim%20of%20this%20study%20was%20to%20investigate%20whether%20endurance%20training%20could%20limit%20the%20abnormalities%20described%20in%20a%20mouse%20model%20of%20sickle%20cell%20disease%20%28SCD%29%20in%20response%20to%20an%20ischaemia%5Cu2013reperfusion%20%28I%5C%2FR%29%20protocol.%20Ten%20sedentary%20%28HbSS-SED%29%20and%20nine%20endurance-trained%20%28HbSS-END%29%20SCD%20mice%20were%20submitted%20to%20a%20standardized%20protocol%20of%20I%5C%2FR%20of%20the%20leg%2C%20during%20which%20ATP%2C%20phosphocreatine%20and%20inorganic%20phosphate%20concentrations%20and%20intramuscular%20pH%20were%20measured%20using%20magnetic%20resonance%20spectroscopy.%20Forty-eight%20hours%20later%2C%20skeletal%20muscles%20were%20harvested.%20Oxidative%20stress%20markers%20were%20then%20measured.%20Although%20the%20time%20course%20of%20protons%20accumulation%20was%20slightly%20different%20between%20trained%20and%20sedentary%20mice%20%28P%20%26lt%3B%200.05%29%2C%20the%20extent%20of%20acidosis%20was%20similar%20at%20the%20end%20of%20the%20ischaemic%20period.%20The%20initial%20rate%20of%20phosphocreatine%20resynthesis%20measured%20at%20blood%20flow%20restoration%2C%20illustrating%20mitochondrial%20function%2C%20was%20not%20altered%20in%20trained%20mice%20compared%20with%20sedentary%20mice.%20Although%20several%20oxidative%20stress%20markers%20were%20not%20different%20between%20groups%20%28P%20%26gt%3B%200.05%29%2C%20the%20I%5C%2FR-related%20increase%20of%20uric%20acid%20concentration%20observed%20in%20sedentary%20SCD%20mice%20%28P%20%26lt%3B%200.05%29%20was%20not%20present%20in%20the%20trained%20group.%20The%20spleen%20weight%2C%20generally%20used%20as%20a%20marker%20of%20the%20severity%20of%20the%20disease%2C%20was%20not%20different%20between%20groups%20%28P%20%26gt%3B%200.05%29.%20In%20conclusion%2C%20endurance%20training%20did%20not%20limit%20the%20metabolic%20consequences%20of%20an%20I%5C%2FR%20protocol%20in%20skeletal%20muscle%20of%20SCD%20mice%2C%20suggesting%20that%20the%20reduction%20in%20the%20severity%20of%20the%20disease%20previously%20demonstrated%20in%20the%20basal%20state%20would%20be%20attributable%20to%20a%20reduction%20of%20the%20occurrence%20of%20vaso-occlusive%20crises%20rather%20than%20a%20decrease%20of%20the%20deleterious%20effects%20of%20vaso-occlusive%20crises.%22%2C%22date%22%3A%222019%22%2C%22language%22%3A%22en%22%2C%22DOI%22%3A%2210.1113%5C%2FEP087430%22%2C%22ISSN%22%3A%221469-445X%22%2C%22url%22%3A%22http%3A%5C%2F%5C%2Fphysoc.onlinelibrary.wiley.com%5C%2Fdoi%5C%2Fabs%5C%2F10.1113%5C%2FEP087430%22%2C%22collections%22%3A%5B%227FK4UDH9%22%2C%225Z6CVJGB%22%2C%22NW6SZQBR%22%2C%22HIWENPPK%22%5D%2C%22dateModified%22%3A%222024-06-14T08%3A30%3A28Z%22%7D%7D%2C%7B%22key%22%3A%229JQ28N6I%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22B%5Cu00e9chir%20et%20al.%22%2C%22parsedDate%22%3A%222018-12%22%2C%22numChildren%22%3A3%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BB%26%23xE9%3Bchir%2C%20N.%2C%20Pecchi%2C%20%26%23xC9%3B.%2C%20Vilmen%2C%20C.%2C%20Bernard%2C%20M.%2C%20Bendahan%2C%20D.%20and%20Giannesini%2C%20B.%20%282018%29%20%26%23x201C%3BActivin%20type%20IIB%20receptor%20blockade%20does%20not%20limit%20adenosine%20triphosphate%20supply%20in%20mouse%20skeletal%20muscle%20in%20Vivo%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BMuscle%20%26amp%3B%20Nerve%26lt%3B%5C%2Fi%26gt%3B%2C%2058%286%29%2C%20pp.%20834%26%23x2013%3B842.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1002%5C%2Fmus.26306%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1002%5C%2Fmus.26306%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Activin%20type%20IIB%20receptor%20blockade%20does%20not%20limit%20adenosine%20triphosphate%20supply%20in%20mouse%20skeletal%20muscle%20in%20Vivo%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Nelly%22%2C%22lastName%22%3A%22B%5Cu00e9chir%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22%5Cu00c9milie%22%2C%22lastName%22%3A%22Pecchi%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Monique%22%2C%22lastName%22%3A%22Bernard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Beno%5Cu00eet%22%2C%22lastName%22%3A%22Giannesini%22%7D%5D%2C%22abstractNote%22%3A%22INTRODUCTION%3A%20Postnatal%20activin%5C%2Fmyostatin%20type%20IIB%20receptor%20%28ActRIIB%29%20blockade%20increases%20skeletal%20muscle%20mass%20and%20strength%20but%20also%20increases%20muscle%20fatigability%20and%20impairs%20oxidative%20metabolism.%20The%20objective%20of%20this%20study%20was%20to%20determine%20in%20vivo%20whether%20this%20increased%20fatigability%20is%20due%20to%20energy%20supply%20limitation.%5CnMETHODS%3A%20The%20impact%20of%208-week%20ActRIIB%20blockade%20with%20soluble%20receptor%20%28sActRIIB-Fc%29%20on%20muscle%20function%20and%20adenosine%20triphosphate%20%28ATP%29%20fluxes%20was%20investigated%20noninvasively%20by%20using%20multimodal%20magnetic%20resonance%20and%20indirect%20calorimetry%20measurements%20in%20wild-type%20mice.%5CnRESULTS%3A%20Activin%5C%2Fmyostatin%20type%20IIB%20receptor%20blockade%20reduced%20%28-41%25%29%20the%20muscle%20apparent%20mitochondrial%20capacity%20and%20increased%20%28%2B11%25%29%20the%20basal%20body%20energy%20expenditure.%20During%20a%20fatiguing%20exercise%2C%20ActRIIB%20blockade%20decreased%20both%20oxidative%20ATP%20production%20rate%20%28-32%25%29%20and%20fatigue%20resistance%20%28-36%25%29%2C%20but%20these%20changes%20affected%20neither%20the%20total%20ATP%20production%20rate%20nor%20the%20contractile%20ATP%20cost.%5CnDISCUSSION%3A%20These%20findings%20demonstrate%20that%20the%20increased%20fatigability%20after%20ActRIIB%20blockade%20is%20not%20due%20to%20limitation%20in%20energy%20supply%20and%5C%2For%20disturbance%20in%20contractile%20ATP%20cost.%20Muscle%20Nerve%2058%3A834-842%2C%202018.%22%2C%22date%22%3A%22Dec%202018%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1002%5C%2Fmus.26306%22%2C%22ISSN%22%3A%221097-4598%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%227FK4UDH9%22%2C%225Z6CVJGB%22%2C%22NW6SZQBR%22%2C%226DHTGFMA%22%5D%2C%22dateModified%22%3A%222023-11-23T14%3A09%3A04Z%22%7D%7D%2C%7B%22key%22%3A%22LDZPCL4Z%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Chatel%20et%20al.%22%2C%22parsedDate%22%3A%222018-10-15%22%2C%22numChildren%22%3A3%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BChatel%2C%20B.%2C%20Messonnier%2C%20L.A.%2C%20Vilmen%2C%20C.%2C%20Bernard%2C%20M.%2C%20Pialoux%2C%20V.%20and%20Bendahan%2C%20D.%20%282018%29%20%26%23x201C%3BExacerbated%20metabolic%20changes%20in%20skeletal%20muscle%20of%20sickle%20cell%20mice%20submitted%20to%20an%20acute%20ischemia-reperfusion%20paradigm%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BClinical%20Science%20%28London%2C%20England%3A%201979%29%26lt%3B%5C%2Fi%26gt%3B%2C%20132%2819%29%2C%20pp.%202103%26%23x2013%3B2115.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1042%5C%2FCS20180268%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1042%5C%2FCS20180268%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Exacerbated%20metabolic%20changes%20in%20skeletal%20muscle%20of%20sickle%20cell%20mice%20submitted%20to%20an%20acute%20ischemia-reperfusion%20paradigm%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Benjamin%22%2C%22lastName%22%3A%22Chatel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Laurent%20A.%22%2C%22lastName%22%3A%22Messonnier%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Monique%22%2C%22lastName%22%3A%22Bernard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Vincent%22%2C%22lastName%22%3A%22Pialoux%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%5D%2C%22abstractNote%22%3A%22Sickle%20cell%20disease%20%28SCD%29%20is%20characterized%20by%20painful%20vaso-occlusive%20crisis.%20While%20there%20are%20several%20metabolic%20abnormalities%20potentially%20associated%20with%20muscular%20ischemia-reperfusion%20cycles%20that%20could%20be%20harmful%20in%20the%20context%20of%20SCD%2C%20the%20metabolic%20consequences%20of%20such%20events%20are%20still%20unknown.%20Ten%20controls%20%28HbAA%29%2C%20thirteen%20heterozygous%20%28HbAS%29%2C%20and%20ten%20homozygous%20%28HbSS%29%20SCD%20mice%20were%20submitted%20to%20a%20standardized%20protocol%20of%20rest-ischemia-reperfusion%20of%20the%20left%20leg%20during%20which%20adenosine%20triphosphate%2C%20phosphocreatine%2C%20and%20inorganic%20phosphate%20concentrations%20as%20well%20as%20intramuscular%20pH%20were%20measured%20using%20phosphorous%20magnetic%20resonance%20spectroscopy%20%28MRS%29.%20Forty-eight%20hours%20later%2C%20skeletal%20muscles%20were%20harvested.%20Oxidative%20stress%20markers%20were%20then%20measured%20on%20the%20tibialis%20anterior.%20At%20the%20end%20of%20the%20ischemic%20period%2C%20HbSS%20mice%20had%20a%20lower%20pH%20value%20as%20compared%20with%20the%20HbAA%20and%20HbAS%20groups%20%28P%26lt%3B0.01%29.%20During%20the%20reperfusion%20period%2C%20the%20initial%20rate%20of%20phosphocreatine%20resynthesis%20was%20lower%20in%20HbSS%20mice%20as%20compared%20with%20HbAA%20%28P%26lt%3B0.05%29%20and%20HbAS%20%28P%26lt%3B0.01%29%20animals.%20No%20significant%20difference%20among%20groups%20was%20observed%20regarding%20oxidative%20stress%20markers.%20HbSS%20mice%20displayed%20a%20higher%20intramuscular%20acidosis%20during%20the%20ischemic%20period%20while%20their%20mitochondrial%20function%20was%20impaired%20as%20compared%20with%20their%20HbAA%20and%20HbAS%20counterparts.%20These%20metabolic%20abnormalities%20could%20worsen%20the%20complications%20related%20to%20the%20pathology%20of%20SCD.%22%2C%22date%22%3A%22Oct%2015%2C%202018%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1042%5C%2FCS20180268%22%2C%22ISSN%22%3A%221470-8736%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%227FK4UDH9%22%2C%225Z6CVJGB%22%2C%22NW6SZQBR%22%2C%22HIWENPPK%22%5D%2C%22dateModified%22%3A%222024-06-14T08%3A30%3A29Z%22%7D%7D%2C%7B%22key%22%3A%22KF2FUUDK%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Messineo%20et%20al.%22%2C%22parsedDate%22%3A%222018-07-31%22%2C%22numChildren%22%3A3%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BMessineo%2C%20A.M.%2C%20Gineste%2C%20C.%2C%20Sztal%2C%20T.E.%2C%20McNamara%2C%20E.L.%2C%20Vilmen%2C%20C.%2C%20Ogier%2C%20A.C.%2C%20Hahne%2C%20D.%2C%20Bendahan%2C%20D.%2C%20Laing%2C%20N.G.%2C%20Bryson-Richardson%2C%20R.J.%2C%20Gondin%2C%20J.%20and%20Nowak%2C%20K.J.%20%282018%29%20%26%23x201C%3BL-tyrosine%20supplementation%20does%20not%20ameliorate%20skeletal%20muscle%20dysfunction%20in%20zebrafish%20and%20mouse%20models%20of%20dominant%20skeletal%20muscle%20%26%23x3B1%3B-actin%20nemaline%20myopathy%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BScientific%20Reports%26lt%3B%5C%2Fi%26gt%3B%2C%208%281%29%2C%20p.%2011490.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1038%5C%2Fs41598-018-29437-z%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1038%5C%2Fs41598-018-29437-z%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22L-tyrosine%20supplementation%20does%20not%20ameliorate%20skeletal%20muscle%20dysfunction%20in%20zebrafish%20and%20mouse%20models%20of%20dominant%20skeletal%20muscle%20%5Cu03b1-actin%20nemaline%20myopathy%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Adriana%20M.%22%2C%22lastName%22%3A%22Messineo%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Charlotte%22%2C%22lastName%22%3A%22Gineste%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Tamar%20E.%22%2C%22lastName%22%3A%22Sztal%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Elyshia%20L.%22%2C%22lastName%22%3A%22McNamara%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Augustin%20C.%22%2C%22lastName%22%3A%22Ogier%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Dorothee%22%2C%22lastName%22%3A%22Hahne%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Nigel%20G.%22%2C%22lastName%22%3A%22Laing%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Robert%20J.%22%2C%22lastName%22%3A%22Bryson-Richardson%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julien%22%2C%22lastName%22%3A%22Gondin%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Kristen%20J.%22%2C%22lastName%22%3A%22Nowak%22%7D%5D%2C%22abstractNote%22%3A%22L-tyrosine%20supplementation%20may%20provide%20benefit%20to%20nemaline%20myopathy%20%28NM%29%20patients%2C%20however%20previous%20studies%20are%20inconclusive%2C%20with%20no%20elevation%20of%20L-tyrosine%20levels%20in%20blood%20or%20tissue%20reported.%20We%20evaluated%20the%20ability%20of%20L-tyrosine%20treatments%20to%20improve%20skeletal%20muscle%20function%20in%20all%20three%20published%20animal%20models%20of%20NM%20caused%20by%20dominant%20skeletal%20muscle%20%5Cu03b1-actin%20%28ACTA1%29%20mutations.%20Highest%20safe%20L-tyrosine%20concentrations%20were%20determined%20for%20dosing%20water%20and%20feed%20of%20wildtype%20zebrafish%20and%20mice%20respectively.%20NM%20TgACTA1D286G-eGFP%20zebrafish%20treated%20with%2010%20%5Cu03bcM%20L-tyrosine%20from%2024%5Cu2009hours%20to%206%20days%20post%20fertilization%20displayed%20no%20improvement%20in%20swimming%20distance.%20NM%20TgACTA1D286G%20mice%20consuming%202%25%20L-tyrosine%20supplemented%20feed%20from%20preconception%20had%20significant%20elevations%20in%20free%20L-tyrosine%20levels%20in%20sera%20%2857%25%29%20and%20quadriceps%20muscle%20%2845%25%29%20when%20examined%20at%206-7%20weeks%20old.%20However%20indicators%20of%20skeletal%20muscle%20integrity%20%28voluntary%20exercise%2C%20bodyweight%2C%20rotarod%20performance%29%20were%20not%20improved.%20Additionally%20no%20benefit%20on%20the%20mechanical%20properties%2C%20energy%20metabolism%2C%20or%20atrophy%20of%20skeletal%20muscles%20of%206-7%20month%20old%20TgACTA1D286G%20and%20KIActa1H40Y%20mice%20eventuated%20from%20consuming%20a%202%25%20L-tyrosine%20supplemented%20diet%20for%204%20weeks.%20Therefore%20this%20study%20yields%20important%20information%20on%20aspects%20of%20the%20clinical%20utility%20of%20L-tyrosine%20for%20ACTA1%20NM.%22%2C%22date%22%3A%22Jul%2031%2C%202018%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1038%5C%2Fs41598-018-29437-z%22%2C%22ISSN%22%3A%222045-2322%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%226XQENTHJ%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%228MP7SHDW%22%2C%2248SZ2I24%22%5D%2C%22dateModified%22%3A%222024-12-19T15%3A16%3A42Z%22%7D%7D%2C%7B%22key%22%3A%2227GZ5Y4F%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Macia%20et%20al.%22%2C%22parsedDate%22%3A%222018-05-01%22%2C%22numChildren%22%3A2%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BMacia%2C%20M.%2C%20Pecchi%2C%20E.%2C%20Desrois%2C%20M.%2C%20Lan%2C%20C.%2C%20Vilmen%2C%20C.%2C%20Portha%2C%20B.%2C%20Bernard%2C%20M.%2C%20Bendahan%2C%20D.%20and%20Giannesini%2C%20B.%20%282018%29%20%26%23x201C%3BExercise%20training%20impacts%20exercise%20tolerance%20and%20bioenergetics%20in%20gastrocnemius%20muscle%20of%20non-obese%20type-2%20diabetic%20Goto-Kakizaki%20rat%20in%26%23xA0%3Bvivo%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BBiochimie%26lt%3B%5C%2Fi%26gt%3B%2C%20148%2C%20pp.%2036%26%23x2013%3B45.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.biochi.2018.02.014%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.biochi.2018.02.014%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Exercise%20training%20impacts%20exercise%20tolerance%20and%20bioenergetics%20in%20gastrocnemius%20muscle%20of%20non-obese%20type-2%20diabetic%20Goto-Kakizaki%20rat%20in%5Cu00a0vivo%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Michael%22%2C%22lastName%22%3A%22Macia%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Emilie%22%2C%22lastName%22%3A%22Pecchi%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Martine%22%2C%22lastName%22%3A%22Desrois%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Carole%22%2C%22lastName%22%3A%22Lan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Bernard%22%2C%22lastName%22%3A%22Portha%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Monique%22%2C%22lastName%22%3A%22Bernard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Beno%5Cu00eet%22%2C%22lastName%22%3A%22Giannesini%22%7D%5D%2C%22abstractNote%22%3A%22The%20functional%20and%20bioenergetics%20impact%20of%20regular%20physical%20activity%20upon%20type-2%20diabetic%20skeletal%20muscle%20independently%20of%20confounding%20factors%20of%20overweight%20remains%20undocumented.%20Here%2C%20gastrocnemius%20muscle%20energy%20fluxes%2C%20mitochondrial%20capacity%20and%20mechanical%20performance%20were%20assessed%20noninvasively%20and%20longitudinally%20in%20non-obese%20diabetic%20Goto-Kakizaki%20rats%20using%20magnetic%20resonance%20%28MR%29%20imaging%20and%20dynamic%2031-phosphorus%20MR%20spectroscopy%20%2831P-MRS%29%20throughout%20a%206-min%20fatiguing%20bout%20of%20exercise%20performed%20before%2C%20in%20the%20middle%20%284-week%29%20and%20at%20the%20end%20of%20an%208-week%20training%20protocol%20consisting%20in%2060-min%20daily%20run%20on%20a%20treadmill.%20The%20training%20protocol%20reduced%20plasmatic%20insulin%20level%20%28%5Cu221261%25%29%20whereas%20blood%20glucose%20and%20non-esterified%20fatty%20acids%20levels%20remained%20unaffected%2C%20thereby%20indicating%20an%20improvement%20of%20insulin%20sensitivity.%20It%20also%20increased%20muscle%20mitochondrial%20citrate%20synthase%20activity%20%28%2B45%25%29%20but%20this%20increase%20did%20not%20enhance%20oxidative%20ATP%20synthesis%20capacity%20in%20working%20muscle%20in%5Cu00a0vivo%20while%20glycolytic%20ATP%20production%20was%20increased%20%28%2B33%25%29.%20On%20the%20other%20hand%2C%20the%20training%20protocol%20impaired%20maximal%20force-generating%20capacity%20%28%5Cu22129%25%29%2C%20total%20amount%20of%20force%20produced%20%28%5Cu221212%25%29%20and%20increased%20ATP%20cost%20of%20contraction%20%28%2B32%25%29%20during%20the%20fatiguing%20exercise.%20Importantly%2C%20these%20deleterious%20effects%20were%20transiently%20worsened%20in%20the%20middle%20of%20the%208-week%20period%2C%20in%20association%20with%20reduced%20oxidative%20capacity%20and%20increased%20basal%20%5BPi%5D%5C%2F%5BPCr%5D%20ratio%20%28an%20in%5Cu00a0vivo%20biomarker%20of%20muscle%20damage%29.%20These%20data%20demonstrate%20that%20the%20beneficial%20effect%20of%20regular%20training%20on%20insulin%20sensitivity%20in%20non-obese%20diabetic%20rat%20occurs%20separately%20from%20any%20improvement%20in%20muscle%20mitochondrial%20function%20and%20might%20be%20linked%20to%20an%20increased%20capacity%20for%20metabolizing%20glucose%20through%20anaerobic%20process%20in%20exercising%20muscle.%22%2C%22date%22%3A%22May%201%2C%202018%22%2C%22language%22%3A%22en%22%2C%22DOI%22%3A%2210.1016%5C%2Fj.biochi.2018.02.014%22%2C%22ISSN%22%3A%220300-9084%22%2C%22url%22%3A%22http%3A%5C%2F%5C%2Fwww.sciencedirect.com%5C%2Fscience%5C%2Farticle%5C%2Fpii%5C%2FS0300908418300579%22%2C%22collections%22%3A%5B%227FK4UDH9%22%2C%225Z6CVJGB%22%2C%2265EHX9KZ%22%2C%22NW6SZQBR%22%2C%226AT58F9E%22%2C%226DHTGFMA%22%2C%22XFDDFPPR%22%5D%2C%22dateModified%22%3A%222023-12-15T10%3A48%3A43Z%22%7D%7D%2C%7B%22key%22%3A%22RW2ADFAI%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Chatel%20et%20al.%22%2C%22parsedDate%22%3A%222018-03%22%2C%22numChildren%22%3A4%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BChatel%2C%20B.%2C%20Messonnier%2C%20L.A.%2C%20Barge%2C%20Q.%2C%20Vilmen%2C%20C.%2C%20Noirez%2C%20P.%2C%20Bernard%2C%20M.%2C%20Pialoux%2C%20V.%20and%20Bendahan%2C%20D.%20%282018%29%20%26%23x201C%3BEndurance%20training%20reduces%20exercise-induced%20acidosis%20and%20improves%20muscle%20function%20in%20a%20mouse%20model%20of%20sickle%20cell%20disease%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BMolecular%20Genetics%20and%20Metabolism%26lt%3B%5C%2Fi%26gt%3B%2C%20123%283%29%2C%20pp.%20400%26%23x2013%3B410.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.ymgme.2017.11.010%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.ymgme.2017.11.010%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Endurance%20training%20reduces%20exercise-induced%20acidosis%20and%20improves%20muscle%20function%20in%20a%20mouse%20model%20of%20sickle%20cell%20disease%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Benjamin%22%2C%22lastName%22%3A%22Chatel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Laurent%20A.%22%2C%22lastName%22%3A%22Messonnier%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Quentin%22%2C%22lastName%22%3A%22Barge%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Philippe%22%2C%22lastName%22%3A%22Noirez%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Monique%22%2C%22lastName%22%3A%22Bernard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Vincent%22%2C%22lastName%22%3A%22Pialoux%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%5D%2C%22abstractNote%22%3A%22Sickle%20cell%20disease%20%28SCD%29%20mice%20%28Townes%20model%20of%20SCD%29%20presented%20exacerbated%20exercise-induced%20acidosis%20and%20fatigability%20as%20compared%20to%20control%20animals.%20We%20hypothesize%20that%20endurance%20training%20could%20represent%20a%20valuable%20approach%20to%20reverse%20these%20muscle%20defects.%20Endurance-trained%20HbAA%20%28HbAA-END%2C%20n%3D10%29%2C%20HbAS%20%28HbAS-END%2C%20n%3D11%29%20and%20HbSS%20%28HbSS-END%2C%20n%3D8%29%20mice%20were%20compared%20to%20their%20sedentary%20counterparts%20%2810%20HbAA-SED%2C%2010%20HbAS-SED%20and%209%20HbSS-SED%20mice%29%20during%20two%20rest%20-%20exercise%20-%20recovery%20protocols%20during%20which%20muscle%20energetics%20and%20function%20were%20measured.%20In%20vitro%20analyses%20of%20some%20proteins%20involved%20in%20muscle%20energetics%2C%20pH%20regulation%20and%20oxidative%20stress%20were%20also%20performed.%20Exercise-induced%20acidosis%20was%20lower%20in%20HbSS-END%20mice%20as%20compared%20to%20their%20sedentary%20counterparts%20during%20both%20moderate%20%28p%26lt%3B0.001%29%20and%20intense%20%28p%26lt%3B0.1%29%20protocols.%20The%20total%20force%20production%20measured%20during%20both%20protocols%20was%20higher%20in%20trained%20mice%20compared%20to%20sedentary%20animals.%20In%20vitro%20analyses%20revealed%20that%20enolase%5C%2Fcitrate%20synthase%20ratio%20was%20reduced%20in%20HbSS-END%20%28p%26lt%3B0.001%29%20and%20HbAS-END%20%28p%26lt%3B0.01%29%20mice%20compared%20to%20their%20sedentary%20counterparts.%20In%20addition%2C%20malondialdehyde%20concentration%20was%20reduced%20in%20trained%20mice%20%28p%26lt%3B0.05%29.%20In%20conclusion%2C%20endurance%20training%20would%20reverse%20the%20more%20pronounced%20exercise-induced%20acidosis%2C%20reduce%20oxidative%20stress%20and%20ameliorate%20some%20of%20the%20muscle%20function%20parameters%20in%20SCD%20mice.%22%2C%22date%22%3A%22Mar%202018%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1016%5C%2Fj.ymgme.2017.11.010%22%2C%22ISSN%22%3A%221096-7206%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%227FK4UDH9%22%2C%225Z6CVJGB%22%2C%22NW6SZQBR%22%2C%22HIWENPPK%22%5D%2C%22dateModified%22%3A%222024-06-14T08%3A30%3A38Z%22%7D%7D%2C%7B%22key%22%3A%22PNSYAVYI%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Four%5Cu00e9%20et%20al.%22%2C%22parsedDate%22%3A%222018%22%2C%22numChildren%22%3A4%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BFour%26%23xE9%3B%2C%20A.%2C%20Ogier%2C%20A.C.%2C%20Le%20Troter%2C%20A.%2C%20Vilmen%2C%20C.%2C%20Feiweier%2C%20T.%2C%20Guye%2C%20M.%2C%20Gondin%2C%20J.%2C%20Besson%2C%20P.%20and%20Bendahan%2C%20D.%20%282018%29%20%26%23x201C%3BDiffusion%20Properties%20and%203D%20Architecture%20of%20Human%20Lower%20Leg%20Muscles%20Assessed%20with%20Ultra-High-Field-Strength%20Diffusion-Tensor%20MR%20Imaging%20and%20Tractography%3A%20Reproducibility%20and%20Sensitivity%20to%20Sex%20Difference%20and%20Intramuscular%20Variability%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BRadiology%26lt%3B%5C%2Fi%26gt%3B%2C%20287%282%29%2C%20pp.%20592%26%23x2013%3B607.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1148%5C%2Fradiol.2017171330%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1148%5C%2Fradiol.2017171330%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Diffusion%20Properties%20and%203D%20Architecture%20of%20Human%20Lower%20Leg%20Muscles%20Assessed%20with%20Ultra-High-Field-Strength%20Diffusion-Tensor%20MR%20Imaging%20and%20Tractography%3A%20Reproducibility%20and%20Sensitivity%20to%20Sex%20Difference%20and%20Intramuscular%20Variability%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Alexandre%22%2C%22lastName%22%3A%22Four%5Cu00e9%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Augustin%20C.%22%2C%22lastName%22%3A%22Ogier%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Arnaud%22%2C%22lastName%22%3A%22Le%20Troter%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Thorsten%22%2C%22lastName%22%3A%22Feiweier%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Maxime%22%2C%22lastName%22%3A%22Guye%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julien%22%2C%22lastName%22%3A%22Gondin%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Pierre%22%2C%22lastName%22%3A%22Besson%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%5D%2C%22abstractNote%22%3A%22Purpose%20To%20demonstrate%20the%20reproducibility%20of%20the%20diffusion%20properties%20and%20three-dimensional%20structural%20organization%20measurements%20of%20the%20lower%20leg%20muscles%20by%20using%20diffusion-tensor%20imaging%20%28DTI%29%20assessed%20with%20ultra-high-field-strength%20%287.0-T%29%20magnetic%20resonance%20%28MR%29%20imaging%20and%20tractography%20of%20skeletal%20muscle%20fibers.%20On%20the%20basis%20of%20robust%20statistical%20mapping%20analyses%2C%20this%20study%20also%20aimed%20at%20determining%20the%20sensitivity%20of%20the%20measurements%20to%20sex%20difference%20and%20intramuscular%20variability.%20Materials%20and%20Methods%20All%20examinations%20were%20performed%20with%20ethical%20review%20board%20approval%3B%20written%20informed%20consent%20was%20obtained%20from%20all%20volunteers.%20Reproducibility%20of%20diffusion%20tensor%20indexes%20assessment%20including%20eigenvalues%2C%20mean%20diffusivity%2C%20and%20fractional%20anisotropy%20%28FA%29%20as%20well%20as%20muscle%20volume%20and%20architecture%20%28ie%2C%20fiber%20length%20and%20pennation%20angle%29%20were%20characterized%20in%20lower%20leg%20muscles%20%28n%20%3D%208%29.%20Intramuscular%20variability%20and%20sex%20differences%20were%20characterized%20in%20young%20healthy%20men%20and%20women%20%28n%20%3D%2010%20in%20each%20group%29.%20Student%20t%20test%2C%20statistical%20parametric%20mapping%2C%20correlation%20coefficients%20%28Spearman%20rho%20and%20Pearson%20product-moment%29%20and%20coefficient%20of%20variation%20%28CV%29%20were%20used%20for%20statistical%20data%20analysis.%20Results%20High%20reproducibility%20of%20measurements%20%28mean%20CV%20%5Cu00b1%20standard%20deviation%2C%204.6%25%20%5Cu00b1%203.8%29%20was%20determined%20in%20diffusion%20properties%20and%20architectural%20parameters.%20Significant%20sex%20differences%20were%20detected%20in%20FA%20%284.2%25%20in%20women%20for%20the%20entire%20lower%20leg%3B%20P%20%3D%20.001%29%20and%20muscle%20volume%20%2821.7%25%20in%20men%20for%20the%20entire%20lower%20leg%3B%20P%20%3D%20.008%29%2C%20whereas%20architecture%20parameters%20were%20almost%20identical%20across%20sex.%20Additional%20differences%20were%20found%20independently%20of%20sex%20in%20diffusion%20properties%20and%20architecture%20along%20several%20muscles%20of%20the%20lower%20leg.%20Conclusion%20The%20high-spatial-resolution%20DTI%20assessed%20with%207.0-T%20MR%20imaging%20allows%20a%20reproducible%20assessment%20of%20structural%20organization%20of%20superficial%20and%20deep%20muscles%2C%20giving%20indirect%20information%20on%20muscle%20function.%20%5Cu00a9RSNA%2C%202018%20Online%20supplemental%20material%20is%20available%20for%20this%20article.%22%2C%22date%22%3A%2205%202018%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1148%5C%2Fradiol.2017171330%22%2C%22ISSN%22%3A%221527-1315%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%226XQENTHJ%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%226M38MJ3E%22%2C%22FK6KXTMZ%22%2C%2248SZ2I24%22%2C%225P5FWCR9%22%2C%22XTA6KS7L%22%5D%2C%22dateModified%22%3A%222024-09-16T13%3A08%3A30Z%22%7D%7D%2C%7B%22key%22%3A%22XTRJMJ3S%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1497928%2C%22username%22%3A%22fkober%22%2C%22name%22%3A%22Frank%20Kober%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Ffkober%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Wegrzyk%20et%20al.%22%2C%22parsedDate%22%3A%222017-06-02%22%2C%22numChildren%22%3A3%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BWegrzyk%2C%20J.%2C%20Ranjeva%2C%20J.-P.%2C%20Four%26%23xE9%3B%2C%20A.%2C%20Kavounoudias%2C%20A.%2C%20Vilmen%2C%20C.%2C%20Mattei%2C%20J.-P.%2C%20Guye%2C%20M.%2C%20Maffiuletti%2C%20N.A.%2C%20Place%2C%20N.%2C%20Bendahan%2C%20D.%20and%20Gondin%2C%20J.%20%282017%29%20%26%23x201C%3BSpecific%20brain%20activation%20patterns%20associated%20with%20two%20neuromuscular%20electrical%20stimulation%20protocols%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BScientific%20Reports%26lt%3B%5C%2Fi%26gt%3B%2C%207%281%29%2C%20p.%202742.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1038%5C%2Fs41598-017-03188-9%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1038%5C%2Fs41598-017-03188-9%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Specific%20brain%20activation%20patterns%20associated%20with%20two%20neuromuscular%20electrical%20stimulation%20protocols%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jennifer%22%2C%22lastName%22%3A%22Wegrzyk%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jean-Philippe%22%2C%22lastName%22%3A%22Ranjeva%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Alexandre%22%2C%22lastName%22%3A%22Four%5Cu00e9%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Anne%22%2C%22lastName%22%3A%22Kavounoudias%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jean-Pierre%22%2C%22lastName%22%3A%22Mattei%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Maxime%22%2C%22lastName%22%3A%22Guye%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Nicola%20A.%22%2C%22lastName%22%3A%22Maffiuletti%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Nicolas%22%2C%22lastName%22%3A%22Place%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julien%22%2C%22lastName%22%3A%22Gondin%22%7D%5D%2C%22abstractNote%22%3A%22The%20influence%20of%20neuromuscular%20electrical%20stimulation%20%28NMES%29%20parameters%20on%20brain%20activation%20has%20been%20scarcely%20investigated.%20We%20aimed%20at%20comparing%20two%20frequently%20used%20NMES%20protocols%20-%20designed%20to%20vary%20in%20the%20extent%20of%20sensory%20input.%20Whole-brain%20functional%20magnetic%20resonance%20imaging%20was%20performed%20in%20sixteen%20healthy%20subjects%20during%20wide-pulse%20high-frequency%20%28WPHF%2C%20100%5Cu2009Hz-1%5Cu2009ms%29%20and%20conventional%20%28CONV%2C%2025%5Cu2009Hz-0.05%5Cu2009ms%29%20NMES%20applied%20over%20the%20triceps%20surae.%20Each%20protocol%20included%2020%20isometric%20contractions%20performed%20at%2010%25%20of%20maximal%20force.%20Voluntary%20plantar%20flexions%20%28VOL%29%20were%20performed%20as%20control%20trial.%20Mean%20force%20was%20not%20different%20among%20the%20three%20protocols%2C%20however%2C%20total%20current%20charge%20was%20higher%20for%20WPHF%20than%20for%20CONV.%20All%20protocols%20elicited%20significant%20activations%20of%20the%20sensorimotor%20network%2C%20cerebellum%20and%20thalamus.%20WPHF%20resulted%20in%20lower%20deactivation%20in%20the%20secondary%20somatosensory%20cortex%20and%20precuneus.%20Bilateral%20thalami%20and%20caudate%20nuclei%20were%20hyperactivated%20for%20CONV.%20The%20modulation%20of%20the%20NMES%20parameters%20resulted%20in%20differently%20activated%5C%2Fdeactivated%20regions%20related%20to%20total%20current%20charge%20of%20the%20stimulation%20but%20not%20to%20mean%20force.%20By%20targeting%20different%20cerebral%20brain%20regions%2C%20the%20two%20NMES%20protocols%20might%20allow%20for%20individually-designed%20rehabilitation%20training%20in%20patients%20who%20can%20no%20longer%20execute%20voluntary%20movements.%22%2C%22date%22%3A%22Jun%2002%2C%202017%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1038%5C%2Fs41598-017-03188-9%22%2C%22ISSN%22%3A%222045-2322%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%226XQENTHJ%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%22UP3H3ICX%22%2C%226M38MJ3E%22%2C%22SXWA9VN6%22%2C%22XTA6KS7L%22%5D%2C%22dateModified%22%3A%222024-12-13T09%3A12%3A43Z%22%7D%7D%2C%7B%22key%22%3A%223XA9BB7P%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Chatel%20et%20al.%22%2C%22parsedDate%22%3A%222017-06%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BChatel%2C%20B.%2C%20Bendahan%2C%20D.%2C%20Hourd%26%23xE9%3B%2C%20C.%2C%20Pellerin%2C%20L.%2C%20Lengacher%2C%20S.%2C%20Magistretti%2C%20P.%2C%20Le%20Fur%2C%20Y.%2C%20Vilmen%2C%20C.%2C%20Bernard%2C%20M.%20and%20Messonnier%2C%20L.A.%20%282017%29%20%26%23x201C%3BRole%20of%20MCT1%20and%20CAII%20in%20skeletal%20muscle%20pH%20homeostasis%2C%20energetics%2C%20and%20function%3A%20in%20vivo%20insights%20from%20MCT1%20haploinsufficient%20mice%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BFASEB%20journal%3A%20official%20publication%20of%20the%20Federation%20of%20American%20Societies%20for%20Experimental%20Biology%26lt%3B%5C%2Fi%26gt%3B%2C%2031%286%29%2C%20pp.%202562%26%23x2013%3B2575.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1096%5C%2Ffj.201601259R%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1096%5C%2Ffj.201601259R%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Role%20of%20MCT1%20and%20CAII%20in%20skeletal%20muscle%20pH%20homeostasis%2C%20energetics%2C%20and%20function%3A%20in%20vivo%20insights%20from%20MCT1%20haploinsufficient%20mice%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Benjamin%22%2C%22lastName%22%3A%22Chatel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Hourd%5Cu00e9%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Luc%22%2C%22lastName%22%3A%22Pellerin%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Sylvain%22%2C%22lastName%22%3A%22Lengacher%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Pierre%22%2C%22lastName%22%3A%22Magistretti%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Monique%22%2C%22lastName%22%3A%22Bernard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Laurent%20A.%22%2C%22lastName%22%3A%22Messonnier%22%7D%5D%2C%22abstractNote%22%3A%22The%20purpose%20of%20this%20study%20was%20to%20investigate%20the%20effects%20of%20a%20partial%20suppression%20of%20monocarboxylate%20transporter%20%28MCT%29-1%20on%20skeletal%20muscle%20pH%2C%20energetics%2C%20and%20function%20%28MCT1%2B%5C%2F-%20mice%29.%20Twenty-four%20MCT1%2B%5C%2F-%20and%2013%20wild-type%20%28WT%29%20mice%20were%20subjected%20to%20a%20rest-exercise-recovery%20protocol%2C%20allowing%20assessment%20of%20muscle%20energetics%20%28by%20magnetic%20resonance%20spectroscopy%29%20and%20function.%20The%20study%20included%20analysis%20of%20enzyme%20activities%20and%20content%20of%20protein%20involved%20in%20pH%20regulation.%20Skeletal%20muscle%20of%20MCT1%2B%5C%2F-%20mice%20had%20lower%20MCT1%20%28-61%25%3B%20P%20%26lt%3B%200.05%29%20and%20carbonic%20anhydrase%20%28CA%29-II%20%28-54%25%3B%20P%20%26lt%3B%200.05%29%20contents.%20Although%20intramuscular%20pH%20was%20higher%20in%20MCT1%2B%5C%2F-%20mice%20at%20rest%20%28P%20%26lt%3B%200.001%29%2C%20the%20mice%20showed%20higher%20acidosis%20during%20the%20first%20minute%20of%20exercise%20%28P%20%26lt%3B%200.01%29.%20Then%2C%20the%20pH%20time%20course%20was%20similar%20among%20groups%20until%20exercise%20completion.%20MCT1%2B%5C%2F-%20mice%20had%20higher%20specific%20peak%20%28P%20%26lt%3B%200.05%29%20and%20maximum%20tetanic%20%28P%20%26lt%3B%200.01%29%20forces%20and%20lower%20fatigability%20%28P%20%26lt%3B%200.001%29%20when%20compared%20to%20WT%20mice.%20We%20conclude%20that%20both%20MCT1%20and%20CAII%20are%20involved%20in%20the%20homeostatic%20control%20of%20pH%20in%20skeletal%20muscle%2C%20both%20at%20rest%20and%20at%20the%20onset%20of%20exercise.%20The%20improved%20muscle%20function%20and%20resistance%20to%20fatigue%20in%20MCT1%2B%5C%2F-%20mice%20remain%20unexplained.-Chatel%2C%20B.%2C%20Bendahan%2C%20D.%2C%20Hourd%5Cu00e9%2C%20C.%2C%20Pellerin%2C%20L.%2C%20Lengacher%2C%20S.%2C%20Magistretti%2C%20P.%2C%20Fur%2C%20Y.%20L.%2C%20Vilmen%2C%20C.%2C%20Bernard%2C%20M.%2C%20Messonnier%2C%20L.%20A.%20Role%20of%20MCT1%20and%20CAII%20in%20skeletal%20muscle%20pH%20homeostasis%2C%20energetics%2C%20and%20function%3A%20in%20vivo%20insights%20from%20MCT1%20haploinsufficient%20mice.%22%2C%22date%22%3A%222017-06%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1096%5C%2Ffj.201601259R%22%2C%22ISSN%22%3A%221530-6860%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22NW6SZQBR%22%2C%22HIWENPPK%22%5D%2C%22dateModified%22%3A%222023-12-15T10%3A50%3A17Z%22%7D%7D%2C%7B%22key%22%3A%22FFVLAA8X%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Chatel%20et%20al.%22%2C%22parsedDate%22%3A%222017-05-01%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BChatel%2C%20B.%2C%20Messonnier%2C%20L.A.%2C%20Hourd%26%23xE9%3B%2C%20C.%2C%20Vilmen%2C%20C.%2C%20Bernard%2C%20M.%20and%20Bendahan%2C%20D.%20%282017%29%20%26%23x201C%3BModerate%20and%20intense%20muscular%20exercises%20induce%20marked%20intramyocellular%20metabolic%20acidosis%20in%20sickle%20cell%20disease%20mice%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BJournal%20of%20Applied%20Physiology%20%28Bethesda%2C%20Md.%3A%201985%29%26lt%3B%5C%2Fi%26gt%3B%2C%20122%285%29%2C%20pp.%201362%26%23x2013%3B1369.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1152%5C%2Fjapplphysiol.01099.2016%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1152%5C%2Fjapplphysiol.01099.2016%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Moderate%20and%20intense%20muscular%20exercises%20induce%20marked%20intramyocellular%20metabolic%20acidosis%20in%20sickle%20cell%20disease%20mice%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Benjamin%22%2C%22lastName%22%3A%22Chatel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Laurent%20A.%22%2C%22lastName%22%3A%22Messonnier%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Hourd%5Cu00e9%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Monique%22%2C%22lastName%22%3A%22Bernard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%5D%2C%22abstractNote%22%3A%22Sickle%20cell%20disease%20%28SCD%29%20is%20associated%20with%20an%20impaired%20oxygen%20delivery%20to%20skeletal%20muscle%20that%20could%20alter%20ATP%20production%20processes.%20The%20present%20study%20aimed%20to%20determine%20the%20effects%20of%20sickle%20hemoglobin%20%28HbS%29%20on%20muscle%20pH%20homeostasis%20in%20response%20to%20exercise%20in%20homozygous%20%28HbSS%2C%20n%20%3D%209%29%20and%20heterozygous%20%28HbAS%2C%20n%20%3D%2010%29%20SCD%20%28Townes%29%20mice%20in%20comparison%20to%20control%20%28HbAA%2C%20n%20%3D%2010%29%20littermates.%20Magnetic%20resonance%20spectroscopy%20of%20phosphorus%2031%20enabled%20to%20measure%20intramuscular%20pH%20and%20phosphocreatine%20%28PCr%29%20concentration%20during%20rest-stimulation-recovery%20protocols%20at%20two%20different%20intensities.%20Maximal%20activity%20of%20some%20enzymes%20involved%20in%20muscle%20energetics%20and%20content%20of%20proteins%20involved%20in%20pH%20regulation%20were%20also%20investigated.%20HbSS%20mice%20presented%20a%20more%20pronounced%20exercise-induced%20intramuscular%20acidosis%2C%20whatever%20the%20intensity%20of%20exercise.%20Moreover%2C%20the%20depletion%20of%20PCr%20was%20also%20exacerbated%20in%20HbSS%20mice%20in%20response%20to%20intense%20exercise%20as%20compared%20with%20both%20HbAA%20and%20HbAS%20mice%20%28P%20%26lt%3B%200.01%29.%20While%20no%20difference%20was%20observed%20concerning%20proteins%20involved%20in%20muscle%20pH%20regulation%2C%20the%20activity%20of%20enolase%20%28a%20glycolytic%20enzyme%29%20was%20higher%20in%20both%20HbSS%20and%20HbAS%20mice%20as%20compared%20with%20controls%20%28P%20%26lt%3B%200.05%29.%20Interestingly%2C%20HbAS%20mice%20presented%20also%20metabolic%20impairments%20as%20compared%20with%20their%20control%20counterparts.%20This%20study%20has%20identified%20for%20the%20first%20time%20an%20exacerbated%20exercise-induced%20intramuscular%20acidosis%20in%20SCD%20mice.NEW%20%26amp%3B%20NOTEWORTHY%20The%20main%20finding%20of%20the%20present%20study%20was%20that%20the%20exercise-induced%20intramuscular%20acidosis%20was%20systematically%20more%20pronounced%20in%20sickle%20cell%20disease%20%28SCD%29%20mice%20as%20compared%20with%20their%20control%20counterparts.%20This%20result%20is%20important%20since%20it%20has%20been%20demonstrated%20in%20vitro%20that%20acidosis%20can%20trigger%20hemoglobin%20polymerization.%20From%20that%20point%20of%20view%2C%20our%20results%20tend%20to%20support%20the%20idea%20that%20high-intensity%20exercise%20may%20increase%20the%20risk%20of%20hemoglobin%20polymerization%20in%20SCD.%22%2C%22date%22%3A%222017-05-01%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1152%5C%2Fjapplphysiol.01099.2016%22%2C%22ISSN%22%3A%221522-1601%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22NW6SZQBR%22%2C%22HIWENPPK%22%5D%2C%22dateModified%22%3A%222024-06-14T08%3A30%3A30Z%22%7D%7D%2C%7B%22key%22%3A%22ETUF6FIU%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1497928%2C%22username%22%3A%22fkober%22%2C%22name%22%3A%22Frank%20Kober%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Ffkober%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Four%5Cu00e9%20et%20al.%22%2C%22parsedDate%22%3A%222017-02%22%2C%22numChildren%22%3A4%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BFour%26%23xE9%3B%2C%20A.%2C%20Duhamel%2C%20G.%2C%20Vilmen%2C%20C.%2C%20Bendahan%2C%20D.%2C%20Jubeau%2C%20M.%20and%20Gondin%2C%20J.%20%282017%29%20%26%23x201C%3BFast%20measurement%20of%20the%20quadriceps%20femoris%20muscle%20transverse%20relaxation%20time%20at%20high%20magnetic%20field%20using%20segmented%20echo-planar%20imaging%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BJournal%20of%20magnetic%20resonance%20imaging%3A%20JMRI%26lt%3B%5C%2Fi%26gt%3B%2C%2045%282%29%2C%20pp.%20356%26%23x2013%3B368.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1002%5C%2Fjmri.25355%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1002%5C%2Fjmri.25355%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Fast%20measurement%20of%20the%20quadriceps%20femoris%20muscle%20transverse%20relaxation%20time%20at%20high%20magnetic%20field%20using%20segmented%20echo-planar%20imaging%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Alexandre%22%2C%22lastName%22%3A%22Four%5Cu00e9%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Guillaume%22%2C%22lastName%22%3A%22Duhamel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Marc%22%2C%22lastName%22%3A%22Jubeau%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julien%22%2C%22lastName%22%3A%22Gondin%22%7D%5D%2C%22abstractNote%22%3A%22PURPOSE%3A%20To%20assess%20and%20validate%20a%20technique%20for%20transverse%20relaxation%20time%20%28T2%20%29%20measurements%20of%20resting%20and%20recovering%20skeletal%20muscle%20following%20exercise%20with%20a%20high%20temporal%20resolution%20and%20large%20volume%20coverage%20using%20segmented%20spin-echo%20echo-planar%20imaging%20%28sSE-EPI%29.%5CnMATERIALS%20AND%20METHODS%3A%20Experiments%20were%20performed%20on%20a%203T%20magnetic%20resonance%20imaging%20%28MRI%29%20scanner%20using%20a%20multislice%20sSE-EPI%20technique%20applied%20at%20different%20echo%20times%20%28TEs%29.%20T2%20measurements%20were%20first%20validated%20in%20vitro%20in%20calibrated%20T2%20phantoms%20%28range%3A%2025-152%20ms%29%20by%20comparing%20sSE-EPI%2C%20standard%20spin-echo%20%28SE%29%2C%20and%20multislice%20multiecho%20%28MSME%29%20techniques%20%28using%20a%20fitting%20procedure%20or%20a%202-TEs%20calculation%29.%20In%20vivo%20measurements%20of%20resting%20T2%20quadriceps%20femoris%20%28QF%29%20muscle%20were%20performed%20with%20both%20sSE-EPI%20and%20MSME%20sequences.%20Finally%2C%20sSE-EPI%20was%20used%20to%20quantify%20T2%20changes%20in%20recovering%20muscle%20after%20an%20exercise.%5CnRESULTS%3A%20T2%20values%20measured%20in%20vitro%20with%20sSE-EPI%20were%20similar%20to%20those%20assessed%20with%20SE%20%28P%20%26gt%3B%200.05%29.%20In%20vitro%20and%20in%20vivo%20T2%20measurements%20obtained%20with%20sSE-EPI%20were%20independent%20of%20the%20T2%20determination%20procedure%20%28P%20%26gt%3B%200.05%29.%20In%20contrast%2C%20both%20in%20vitro%20and%20in%20vivo%20T2%20values%20derived%20from%20MSME%20were%20significantly%20different%20when%20using%202-TEs%20calculation%20as%20compared%20to%20the%20fitting%20procedure%20%28P%20%26lt%3B%200.05%29.%20sSE-EPI%20allowed%20the%20detection%20of%20increased%20T2%20values%20in%20the%20QF%20muscle%20immediately%20after%20exercise%20%28%2B14%5Cu2009%5Cu00b1%5Cu20099%25%29%2C%20while%20lower%20T2%20values%20were%20recorded%20less%20than%202%20min%20afterwards%20%28P%20%26lt%3B%200.05%29.%5CnCONCLUSION%3A%20sSE-EPI%20sequence%20is%20a%20relevant%20method%20to%20monitor%20exercise-induced%20T2%20changes%20of%20skeletal%20muscles%20over%20large%20volume%20coverage%20and%20to%20detect%20abnormal%20patterns%20of%20muscle%20activation.%5CnLEVEL%20OF%20EVIDENCE%3A%201%20J.%20Magn.%20Reson.%20Imaging%202017%3B45%3A356-368.%22%2C%22date%22%3A%22Feb%202017%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1002%5C%2Fjmri.25355%22%2C%22ISSN%22%3A%221522-2586%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%224U7D3E9U%22%2C%226XQENTHJ%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%226M38MJ3E%22%5D%2C%22dateModified%22%3A%222024-11-21T08%3A40%3A57Z%22%7D%7D%2C%7B%22key%22%3A%22W2JZ86GV%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Chatel%20et%20al.%22%2C%22parsedDate%22%3A%222017-01-11%22%2C%22numChildren%22%3A4%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BChatel%2C%20B.%2C%20Hourd%26%23xE9%3B%2C%20C.%2C%20Gondin%2C%20J.%2C%20Four%26%23xE9%3B%2C%20A.%2C%20Le%20Fur%2C%20Y.%2C%20Vilmen%2C%20C.%2C%20Bernard%2C%20M.%2C%20Messonnier%2C%20L.A.%20and%20Bendahan%2C%20D.%20%282017%29%20%26%23x201C%3BImpaired%20muscle%20force%20production%20and%20higher%20fatigability%20in%20a%20mouse%20model%20of%20sickle%20cell%20disease%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BBlood%20Cells%2C%20Molecules%20%26amp%3B%20Diseases%26lt%3B%5C%2Fi%26gt%3B%2C%2063%2C%20pp.%2037%26%23x2013%3B44.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.bcmd.2017.01.004%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.bcmd.2017.01.004%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Impaired%20muscle%20force%20production%20and%20higher%20fatigability%20in%20a%20mouse%20model%20of%20sickle%20cell%20disease%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Benjamin%22%2C%22lastName%22%3A%22Chatel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Hourd%5Cu00e9%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julien%22%2C%22lastName%22%3A%22Gondin%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Alexandre%22%2C%22lastName%22%3A%22Four%5Cu00e9%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Monique%22%2C%22lastName%22%3A%22Bernard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Laurent%20A.%22%2C%22lastName%22%3A%22Messonnier%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%5D%2C%22abstractNote%22%3A%22Skeletal%20muscle%20function%20has%20been%20scarcely%20investigated%20in%20sickle%20cell%20disease%20%28SCD%29%20so%20that%20the%20corresponding%20impact%20of%20sickle%20hemoglobin%20is%20still%20a%20matter%20of%20debate.%20The%20purpose%20of%20this%20study%20was%20to%20investigate%20muscle%20force%20production%20and%20fatigability%20in%20SCD%20and%20to%20identify%20whether%20exercise%20intensity%20could%20have%20a%20modulatory%20effect.%20Ten%20homozygous%20sickle%20cell%20%28HbSS%29%2C%20ten%20control%20%28HbAA%29%20and%20ten%20heterozygous%20%28HbAS%29%20mice%20were%20submitted%20to%20two%20stimulation%20protocols%20%28moderate%20and%20intense%29%20to%20assess%20force%20production%20and%20fatigability.%20We%20showed%20that%20specific%20maximal%20tetanic%20force%20was%20lower%20in%20HbSS%20mice%20as%20compared%20to%20other%20groups.%20At%20the%20onset%20of%20the%20stimulation%20period%2C%20peak%20force%20was%20reduced%20in%20HbSS%20and%20HbAS%20mice%20as%20compared%20to%20HbAA%20mice.%20Contrary%20to%20the%20moderate%20protocol%2C%20the%20intense%20stimulation%20protocol%20was%20associated%20with%20a%20larger%20decrease%20in%20peak%20force%20and%20rate%20of%20force%20development%20in%20HbSS%20mice%20as%20compared%20to%20HbAA%20and%20HbAS%20mice.%20These%20findings%20provide%20in%20vivo%20evidence%20of%20impaired%20muscle%20force%20production%20and%20resistance%20to%20fatigue%20in%20SCD.%20These%20changes%20are%20independent%20of%20muscle%20mass.%20Moreover%2C%20SCD%20is%20associated%20with%20muscle%20fatigability%20when%20exercise%20intensity%20is%20high.%22%2C%22date%22%3A%22Jan%2011%2C%202017%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1016%5C%2Fj.bcmd.2017.01.004%22%2C%22ISSN%22%3A%221096-0961%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%226XQENTHJ%22%2C%227FK4UDH9%22%2C%225Z6CVJGB%22%2C%22NW6SZQBR%22%2C%226M38MJ3E%22%2C%22HIWENPPK%22%5D%2C%22dateModified%22%3A%222024-09-16T13%3A08%3A44Z%22%7D%7D%2C%7B%22key%22%3A%22MHU9WPRM%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22B%5Cu00e9chir%20et%20al.%22%2C%22parsedDate%22%3A%222016-10%22%2C%22numChildren%22%3A3%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BB%26%23xE9%3Bchir%2C%20N.%2C%20Pecchi%2C%20E.%2C%20Vilmen%2C%20C.%2C%20Le%20Fur%2C%20Y.%2C%20Amthor%2C%20H.%2C%20Bernard%2C%20M.%2C%20Bendahan%2C%20D.%20and%20Giannesini%2C%20B.%20%282016%29%20%26%23x201C%3BActRIIB%20blockade%20increases%20force-generating%20capacity%20and%20preserves%20energy%20supply%20in%20exercising%20mdx%20mouse%20muscle%20in%20vivo%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BFASEB%20journal%3A%20official%20publication%20of%20the%20Federation%20of%20American%20Societies%20for%20Experimental%20Biology%26lt%3B%5C%2Fi%26gt%3B%2C%2030%2810%29%2C%20pp.%203551%26%23x2013%3B3562.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1096%5C%2Ffj.201600271RR%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1096%5C%2Ffj.201600271RR%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22ActRIIB%20blockade%20increases%20force-generating%20capacity%20and%20preserves%20energy%20supply%20in%20exercising%20mdx%20mouse%20muscle%20in%20vivo%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Nelly%22%2C%22lastName%22%3A%22B%5Cu00e9chir%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Emilie%22%2C%22lastName%22%3A%22Pecchi%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Helge%22%2C%22lastName%22%3A%22Amthor%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Monique%22%2C%22lastName%22%3A%22Bernard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Beno%5Cu00eet%22%2C%22lastName%22%3A%22Giannesini%22%7D%5D%2C%22abstractNote%22%3A%22Postnatal%20blockade%20of%20the%20activin%20type%20IIB%20receptor%20%28ActRIIB%29%20represents%20a%20promising%20therapeutic%20strategy%20for%20counteracting%20dystrophic%20muscle%20wasting.%20However%2C%20its%20impact%20on%20muscle%20function%20and%20bioenergetics%20remains%20poorly%20documented%20in%20physiologic%20conditions.%20We%20have%20investigated%20totally%20noninvasively%20the%20effect%20of%208-wk%20administration%20of%20either%20soluble%20ActRIIB%20signaling%20inhibitor%20%28sActRIIB-Fc%29%20or%20vehicle%20PBS%20%28control%29%20on%20gastrocnemius%20muscle%20force-generating%20capacity%2C%20energy%20metabolism%2C%20and%20anatomy%20in%20dystrophic%20mdx%20mice%20using%20magnetic%20resonance%20%28MR%29%20imaging%20and%20dynamic%20%5B%2831%29P%5D-MR%20spectroscopy%20%28%5B%2831%29P%5D-MRS%29%20in%20vivo%20ActRIIB%20inhibition%20increased%20muscle%20volume%20%28%2B33%25%29%20without%20changing%20fiber-type%20distribution%2C%20and%20increased%20basal%20animal%20oxygen%20consumption%20%28%2B22%25%29%20and%20energy%20expenditure%20%28%2B23%25%29.%20During%20an%20in%20vivo%20standardized%20fatiguing%20exercise%2C%20maximum%20and%20total%20absolute%20contractile%20forces%20were%20larger%20%28%2B40%20and%2024%25%2C%20respectively%29%20in%20sActRIIB-Fc%20treated%20animals%2C%20whereas%20specific%20force-generating%20capacity%20and%20fatigue%20resistance%20remained%20unaffected.%20Furthermore%2C%20sActRIIB-Fc%20administration%20did%20not%20alter%20metabolic%20fluxes%2C%20ATP%20homeostasis%2C%20or%20contractile%20efficiency%20during%20the%20fatiguing%20bout%20of%20exercise%2C%20although%20it%20dramatically%20reduced%20the%20intrinsic%20mitochondrial%20capacity%20for%20producing%20ATP.%20Overall%2C%20sActRIIB-Fc%20treatment%20increased%20muscle%20mass%20and%20strength%20without%20altering%20the%20fundamental%20weakness%20characteristic%20of%20dystrophic%20mdx%20muscle.%20These%20data%20support%20the%20clinical%20interest%20of%20ActRIIB%20blockade%20for%20reversing%20dystrophic%20muscle%20wasting.-B%5Cu00e9chir%2C%20N.%2C%20Pecchi%2C%20E.%2C%20Vilmen%2C%20C.%2C%20Le%20Fur%2C%20Y.%2C%20Amthor%2C%20H.%2C%20Bernard%2C%20M.%2C%20Bendahan%2C%20D.%2C%20Giannesini%2C%20B.%20ActRIIB%20blockade%20increases%20force-generating%20capacity%20and%20preserves%20energy%20supply%20in%20exercising%20mdx%20mouse%20muscle%20in%20vivo.%22%2C%22date%22%3A%22Oct%202016%22%2C%22language%22%3A%22ENG%22%2C%22DOI%22%3A%2210.1096%5C%2Ffj.201600271RR%22%2C%22ISSN%22%3A%221530-6860%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%227FK4UDH9%22%2C%225Z6CVJGB%22%2C%22NW6SZQBR%22%2C%226DHTGFMA%22%5D%2C%22dateModified%22%3A%222024-06-14T08%3A30%3A31Z%22%7D%7D%2C%7B%22key%22%3A%22SIVS2A5W%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Martin%20et%20al.%22%2C%22parsedDate%22%3A%222016-08%22%2C%22numChildren%22%3A3%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BMartin%2C%20A.%2C%20Grospr%26%23xEA%3Btre%2C%20S.%2C%20Vilmen%2C%20C.%2C%20Guye%2C%20M.%2C%20Mattei%2C%20J.-P.%2C%20LE%20Fur%2C%20Y.%2C%20Bendahan%2C%20D.%20and%20Gondin%2C%20J.%20%282016%29%20%26%23x201C%3BThe%20Etiology%20of%20Muscle%20Fatigue%20Differs%20between%20Two%20Electrical%20Stimulation%20Protocols%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BMedicine%20and%20Science%20in%20Sports%20and%20Exercise%26lt%3B%5C%2Fi%26gt%3B%2C%2048%288%29%2C%20pp.%201474%26%23x2013%3B1484.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1249%5C%2FMSS.0000000000000930%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1249%5C%2FMSS.0000000000000930%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22The%20Etiology%20of%20Muscle%20Fatigue%20Differs%20between%20Two%20Electrical%20Stimulation%20Protocols%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Alain%22%2C%22lastName%22%3A%22Martin%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Sidney%22%2C%22lastName%22%3A%22Grospr%5Cu00eatre%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Maxime%22%2C%22lastName%22%3A%22Guye%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jean-Pierre%22%2C%22lastName%22%3A%22Mattei%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22LE%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julien%22%2C%22lastName%22%3A%22Gondin%22%7D%5D%2C%22abstractNote%22%3A%22PURPOSE%3A%20This%20study%20aimed%20at%20investigating%20the%20mechanisms%20involved%20in%20the%20force%20reduction%20induced%20by%20two%20electrical%20stimulation%20%28ES%29%20protocols%20that%20were%20designed%20to%20activate%20motor%20units%20differently.%5CnMETHODS%3A%20The%20triceps%20surae%20of%2011%20healthy%20subjects%20%288%20men%3B%20age%2C%20~28%20yr%29%20was%20activated%20using%20ES%20applied%20over%20the%20tibial%20nerve.%20Two%20ES%20protocols%20%28conventional%20%5BCONV%5D%3A%2020%20Hz%2C%200.05%20ms%20vs%20wide-pulse%20high-frequency%20%5BWPHF%5D%3A%2080%20Hz%2C%201%20ms%29%20were%20performed%20and%20involved%2040%20trains%20%286%20s%20on-6%20s%20off%29%20delivered%20at%20an%20intensity%20%28IES%29%20evoking%2020%25%20of%20maximal%20voluntary%20contraction.%20To%20analyze%20the%20mechanical%20properties%20of%20the%20motor%20units%20activated%20at%20IES%2C%20force-frequency%20relation%20was%20evoked%20before%20and%20after%20each%20protocol.%20H-reflex%20and%20M-wave%20responses%20evoked%20by%20the%20last%20stimulation%20pulse%20were%20also%20assessed%20during%20each%20ES%20protocol.%20Electromyographic%20responses%20%28%5Cu2211EMG%29%20were%20recorded%20after%20each%20train%20to%20analyze%20the%20behavior%20of%20the%20motor%20units%20activated%20at%20IES.%20Metabolic%20variables%2C%20including%20relative%20concentrations%20of%20phosphocreatine%20and%20inorganic%20phosphate%20as%20well%20as%20intracellular%20pH%2C%20were%20assessed%20using%20P-MR%20spectroscopy%20during%20each%20protocol.%5CnRESULTS%3A%20Larger%20H-reflex%20amplitudes%20were%20observed%20during%20WPHF%20as%20compared%20with%20CONV%2C%20whereas%20opposite%20findings%20were%20observed%20for%20M-wave%20amplitudes.%20Despite%20this%20difference%2C%20both%20the%20force%20reduction%20%28-26%25%29%20and%20metabolic%20changes%20were%20similar%20between%20the%20two%20protocols.%20The%20CONV%20protocol%20induced%20a%20rightward%20shift%20of%20the%20force-frequency%20relation%2C%20whereas%20a%20significant%20reduction%20of%20the%20%5Cu2211EMG%20evoked%20at%20IES%20was%20observed%20only%20for%20the%20WPHF.%5CnCONCLUSIONS%3A%20These%20results%20suggest%20that%20a%20decreased%20number%20of%20active%20motor%20units%20mainly%20contributed%20to%20WPHF-induced%20force%20decrease%2C%20whereas%20intracellular%20processes%20were%20most%20likely%20involved%20in%20the%20force%20reduction%20occurring%20during%20CONV%20stimulation.%22%2C%22date%22%3A%22Aug%202016%22%2C%22language%22%3A%22ENG%22%2C%22DOI%22%3A%2210.1249%5C%2FMSS.0000000000000930%22%2C%22ISSN%22%3A%221530-0315%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%226XQENTHJ%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%22XTA6KS7L%22%5D%2C%22dateModified%22%3A%222023-12-15T10%3A50%3A08Z%22%7D%7D%2C%7B%22key%22%3A%22S3MEIP59%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Layec%20et%20al.%22%2C%22parsedDate%22%3A%222016-05%22%2C%22numChildren%22%3A4%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BLayec%2C%20G.%2C%20Bringard%2C%20A.%2C%20LE%20Fur%2C%20Y.%2C%20Micallef%2C%20J.-P.%2C%20Vilmen%2C%20C.%2C%20Perrey%2C%20S.%2C%20Cozzone%2C%20P.J.%20and%20Bendahan%2C%20D.%20%282016%29%20%26%23x201C%3BMitochondrial%20Coupling%20and%20Contractile%20Efficiency%20in%20Humans%20with%20High%20and%20Low%20V%26%23x2D9%3BO2peaks%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BMedicine%20and%20Science%20in%20Sports%20and%20Exercise%26lt%3B%5C%2Fi%26gt%3B%2C%2048%285%29%2C%20pp.%20811%26%23x2013%3B821.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1249%5C%2FMSS.0000000000000858%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1249%5C%2FMSS.0000000000000858%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Mitochondrial%20Coupling%20and%20Contractile%20Efficiency%20in%20Humans%20with%20High%20and%20Low%20V%5Cu02d9O2peaks%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Gwenael%22%2C%22lastName%22%3A%22Layec%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Aur%5Cu00e9lien%22%2C%22lastName%22%3A%22Bringard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22LE%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jean-Paul%22%2C%22lastName%22%3A%22Micallef%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22St%5Cu00e9phane%22%2C%22lastName%22%3A%22Perrey%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Patrick%20J.%22%2C%22lastName%22%3A%22Cozzone%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%5D%2C%22abstractNote%22%3A%22INTRODUCTION%3A%20Endurance%20training%20elicits%20tremendous%20adaptations%20of%20the%20mitochondrial%20energetic%20capacity.%20Yet%2C%20the%20effects%20of%20training%20or%20physical%20fitness%20on%20mitochondrial%20efficiency%20during%20exercise%20are%20still%20unclear.%20Accordingly%2C%20the%20purpose%20of%20the%20present%20study%20was%20to%20examine%20in%20vivo%20the%20differences%20in%20mitochondrial%20efficiency%20and%20ATP%20cost%20of%20contraction%20during%20exercise%20in%20two%20groups%20of%20adults%20differing%20in%20their%20aerobic%20capacity.%5CnMETHOD%3A%20We%20simultaneously%20assessed%20the%20ATP%20synthesis%20and%20O2%20fluxes%20with%20P-magnetic%20resonance%20spectroscopy%20and%20pulmonary%20gas%20exchange%20measurements%20in%20seven%20endurance-trained%20%28ET%2C%20V%5Cu02d9O2max%3A%2067%20%5Cu00b1%208%20mL%5Cu00b7min%5Cu00b7kg%29%20and%20seven%20recreationally%20active%20%28RA%2C%20V%5Cu02d9O2max%3A%2043%20%5Cu00b1%207%20mL%5Cu00b7min%5Cu00b7kg%29%20subjects%20during%206%20min%20of%20dynamic%20moderate-intensity%20knee%20extension.%5CnRESULTS%3A%20The%20ATP%20cost%20of%20dynamic%20contraction%20was%20not%20significantly%20different%20between%20ET%20and%20RA%20%28P%20%26gt%3B%200.05%29.%20Similarly%2C%20end-exercise%20O2%20consumption%20was%20not%20significantly%20different%20between%20groups%20%28ET%3A%20848%20%5Cu00b1%20155%20mL%5Cu00b7min%20and%20RA%3A%20760%20%5Cu00b1%20131%20mL%5Cu00b7min%2C%20P%20%26gt%3B%200.05%29.%20During%20the%20recovery%20period%2C%20the%20PCr%20offset%20time%20constant%20was%20significantly%20faster%20in%20ET%20compared%20with%20RA%20%28ET%3A%2032%20%5Cu00b1%208%20s%20and%20RA%3A%2043%20%5Cu00b1%2010%20s%2C%20P%20%26lt%3B%200.05%29%2C%20thus%20indicating%20an%20increased%20mitochondrial%20capacity%20for%20ATP%20synthesis%20in%20the%20quadriceps%20of%20ET.%20In%20contrast%2C%20the%20estimated%20mitochondrial%20efficiency%20during%20exercise%20was%20not%20significantly%20different%20%28P%5C%2FO%2C%20ET%3A%202.0%20%5Cu00b1%201.0%20and%20RA%3A%201.8%20%5Cu00b1%200.4%2C%20P%20%26gt%3B%200.05%29.%20Consequently%2C%20the%20higher%20mitochondrial%20capacity%20for%20ATP%20synthesis%20in%20ET%20likely%20originated%20from%20an%20elevated%20mitochondrial%20volume%20density%2C%20mitochondria-specific%20respiratory%20capacity%2C%20and%5C%2For%20slower%20postexercise%20inactivation%20of%20oxidative%20phosphorylation%20by%20the%20parallel%20activation%20mechanism.%5CnCONCLUSION%3A%20Together%2C%20these%20findings%20reveal%20that%201%29%20mitochondrial%20and%20contractile%20efficiencies%20are%20unaltered%20by%20several%20years%20of%20endurance%20training%20in%20young%20adults%2C%20and%202%29%20the%20training-induced%20improvement%20in%20mitochondrial%20energetic%20capacity%20appears%20to%20be%20independent%20from%20changes%20in%20mitochondrial%20coupling.%22%2C%22date%22%3A%22May%202016%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1249%5C%2FMSS.0000000000000858%22%2C%22ISSN%22%3A%221530-0315%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%224ZGX55W3%22%5D%2C%22dateModified%22%3A%222024-07-04T07%3A45%3A22Z%22%7D%7D%2C%7B%22key%22%3A%22JN6BPY82%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22B%5Cu00e9chir%20et%20al.%22%2C%22parsedDate%22%3A%222016-04-01%22%2C%22numChildren%22%3A2%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BB%26%23xE9%3Bchir%2C%20N.%2C%20Pecchi%2C%20%26%23xC9%3B.%2C%20Relizani%2C%20K.%2C%20Vilmen%2C%20C.%2C%20Le%20Fur%2C%20Y.%2C%20Bernard%2C%20M.%2C%20Amthor%2C%20H.%2C%20Bendahan%2C%20D.%20and%20Giannesini%2C%20B.%20%282016%29%20%26%23x201C%3BMitochondrial%20impairment%20induced%20by%20postnatal%20ActRIIB%20blockade%20does%20not%20alter%20function%20and%20energy%20status%20in%20exercising%20mouse%20glycolytic%20muscle%20in%20vivo%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BAmerican%20Journal%20of%20Physiology.%20Endocrinology%20and%20Metabolism%26lt%3B%5C%2Fi%26gt%3B%2C%20310%287%29%2C%20pp.%20E539-549.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1152%5C%2Fajpendo.00370.2015%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1152%5C%2Fajpendo.00370.2015%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Mitochondrial%20impairment%20induced%20by%20postnatal%20ActRIIB%20blockade%20does%20not%20alter%20function%20and%20energy%20status%20in%20exercising%20mouse%20glycolytic%20muscle%20in%20vivo%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Nelly%22%2C%22lastName%22%3A%22B%5Cu00e9chir%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22%5Cu00c9milie%22%2C%22lastName%22%3A%22Pecchi%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Karima%22%2C%22lastName%22%3A%22Relizani%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Monique%22%2C%22lastName%22%3A%22Bernard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Helge%22%2C%22lastName%22%3A%22Amthor%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Beno%5Cu00eet%22%2C%22lastName%22%3A%22Giannesini%22%7D%5D%2C%22abstractNote%22%3A%22Because%20it%20leads%20to%20a%20rapid%20and%20massive%20muscle%20hypertrophy%2C%20postnatal%20blockade%20of%20the%20activin%20type%20IIB%20receptor%20%28ActRIIB%29%20is%20a%20promising%20therapeutic%20strategy%20for%20counteracting%20muscle%20wasting.%20However%2C%20the%20functional%20consequences%20remain%20very%20poorly%20documented%20in%20vivo.%20Here%2C%20we%20have%20investigated%20the%20impact%20of%208-wk%20ActRIIB%20blockade%20with%20soluble%20receptor%20%28sActRIIB-Fc%29%20on%20gastrocnemius%20muscle%20anatomy%2C%20energy%20metabolism%2C%20and%20force-generating%20capacity%20in%20wild-type%20mice%2C%20using%20totally%20noninvasive%20magnetic%20resonance%20imaging%20%28MRI%29%20and%20dynamic%2831%29P-MRS.%20Compared%20with%20vehicle%20%28PBS%29%20control%2C%20sActRIIB-Fc%20treatment%20resulted%20in%20a%20dramatic%20increase%20in%20body%20weight%20%28%2B29%25%29%20and%20muscle%20volume%20%28%2B58%25%29%20calculated%20from%20hindlimb%20MR%20imaging%2C%20but%20did%20not%20alter%20fiber%20type%20distribution%20determined%20via%20myosin%20heavy%20chain%20isoform%20analysis.%20In%20resting%20muscle%2C%20sActRIIB-Fc%20treatment%20induced%20acidosis%20and%20PCr%20depletion%2C%20thereby%20suggesting%20reduced%20tissue%20oxygenation.%20During%20an%20in%20vivo%20fatiguing%20exercise%20%286-min%20repeated%20maximal%20isometric%20contraction%20electrically%20induced%20at%201.7%20Hz%29%2C%20maximal%20and%20total%20absolute%20forces%20were%20larger%20in%20sActRIIB-Fc%20treated%20animals%20%28%2B26%20and%20%2B12%25%2C%20respectively%29%2C%20whereas%20specific%20force%20and%20fatigue%20resistance%20were%20lower%20%28-30%20and%20-37%25%2C%20respectively%29.%20Treatment%20with%20sActRIIB-Fc%20further%20decreased%20the%20maximal%20rate%20of%20oxidative%20ATP%20synthesis%20%28-42%25%29%20and%20the%20oxidative%20capacity%20%28-34%25%29%2C%20but%20did%20not%20alter%20the%20bioenergetics%20status%20in%20contracting%20muscle.%20Our%20findings%20demonstrate%20in%20vivo%20that%20sActRIIB-Fc%20treatment%20increases%20absolute%20force-generating%20capacity%20and%20reduces%20mitochondrial%20function%20in%20glycolytic%20gastrocnemius%20muscle%2C%20but%20this%20reduction%20does%20not%20compromise%20energy%20status%20during%20sustained%20activity.%20Overall%2C%20these%20data%20support%20the%20clinical%20interest%20of%20postnatal%20ActRIIB%20blockade.%22%2C%22date%22%3A%222016-04-01%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1152%5C%2Fajpendo.00370.2015%22%2C%22ISSN%22%3A%221522-1555%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22NW6SZQBR%22%5D%2C%22dateModified%22%3A%222024-06-14T08%3A30%3A34Z%22%7D%7D%2C%7B%22key%22%3A%22TJJJ4DVZ%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1497928%2C%22username%22%3A%22fkober%22%2C%22name%22%3A%22Frank%20Kober%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Ffkober%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Four%5Cu00e9%20et%20al.%22%2C%22parsedDate%22%3A%222016-02%22%2C%22numChildren%22%3A2%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BFour%26%23xE9%3B%2C%20A.%2C%20Nosaka%2C%20K.%2C%20Gastaldi%2C%20M.%2C%20Mattei%2C%20J.-P.%2C%20Boudinet%2C%20H.%2C%20Guye%2C%20M.%2C%20Vilmen%2C%20C.%2C%20Le%20Fur%2C%20Y.%2C%20Bendahan%2C%20D.%20and%20Gondin%2C%20J.%20%282016%29%20%26%23x201C%3BEffects%20of%20branched-chain%20amino%20acids%20supplementation%20on%20both%20plasma%20amino%20acids%20concentration%20and%20muscle%20energetics%20changes%20resulting%20from%20muscle%20damage%3A%20A%20randomized%20placebo%20controlled%20trial%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BClinical%20Nutrition%20%28Edinburgh%2C%20Scotland%29%26lt%3B%5C%2Fi%26gt%3B%2C%2035%281%29%2C%20pp.%2083%26%23x2013%3B94.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.clnu.2015.03.014%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.clnu.2015.03.014%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Effects%20of%20branched-chain%20amino%20acids%20supplementation%20on%20both%20plasma%20amino%20acids%20concentration%20and%20muscle%20energetics%20changes%20resulting%20from%20muscle%20damage%3A%20A%20randomized%20placebo%20controlled%20trial%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Alexandre%22%2C%22lastName%22%3A%22Four%5Cu00e9%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Kazunori%22%2C%22lastName%22%3A%22Nosaka%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Marguerite%22%2C%22lastName%22%3A%22Gastaldi%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jean-Pierre%22%2C%22lastName%22%3A%22Mattei%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22H%5Cu00e9l%5Cu00e8ne%22%2C%22lastName%22%3A%22Boudinet%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Maxime%22%2C%22lastName%22%3A%22Guye%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julien%22%2C%22lastName%22%3A%22Gondin%22%7D%5D%2C%22abstractNote%22%3A%22BACKGROUND%20%26amp%3B%20AIMS%3A%20Branched-chain%20amino%20acids%20promote%20muscle-protein%20synthesis%2C%20reduce%20protein%20oxidation%20and%20have%20positive%20effects%20on%20mitochondrial%20biogenesis%20and%20reactive%20oxygen%20species%20scavenging.%20The%20purpose%20of%20the%20study%20was%20to%20determine%20the%20potential%20benefits%20of%20branched-chain%20amino%20acids%20supplementation%20on%20changes%20in%20force%20capacities%2C%20plasma%20amino%20acids%20concentration%20and%20muscle%20metabolic%20alterations%20after%20exercise-induced%20muscle%20damage.%5CnMETHODS%3A%20%2831%29P%20magnetic%20resonance%20spectroscopy%20and%20biochemical%20analyses%20were%20used%20to%20follow%20the%20changes%20after%20such%20damage.%20Twenty%20six%20young%20healthy%20men%20were%20randomly%20assigned%20to%20supplemented%20branched-chain%20amino%20acids%20or%20placebo%20group.%20Knee%20extensors%20maximal%20voluntary%20isometric%20force%20was%20assessed%20before%20and%20on%20four%20days%20following%20exercise-induced%20muscle%20damage.%20Concentrations%20in%20phosphocreatine%20%5BPCr%5D%2C%20inorganic%20phosphate%20%5BPi%5D%20and%20pH%20were%20measured%20during%20a%20standardized%20rest-exercise-recovery%20protocol%20before%2C%20two%20%28D2%29%20and%20four%20%28D4%29%20days%20after%20exercise-induced%20muscle%20damage.%5CnRESULTS%3A%20No%20significant%20difference%20between%20groups%20was%20found%20for%20changes%20in%20maximal%20voluntary%20isometric%20force%20%28-24%25%20at%20D2%20and%5Cu00a0-21%25%20at%20D4%29.%20Plasma%20alanine%20concentration%20significantly%20increased%20immediately%20after%20exercise-induced%20muscle%20damage%20%28%2B25%25%29%20in%20both%20groups%20while%20concentrations%20in%20glycine%2C%20histidine%2C%20phenylalanine%20and%20tyrosine%20decreased.%20No%20difference%20between%20groups%20was%20found%20in%20the%20increased%20resting%20%5BPi%5D%20%28%2B42%25%20at%20D2%20and%5Cu00a0%2B34%25%20at%20D4%29%2C%20decreased%20resting%20pH%20%28-0.04%5Cu00a0at%20D2%20and%5Cu00a0-0.03%20at%20D4%29%20and%20the%20slower%20PCr%20recovery%20rate%20%28-18%25%20at%20D2%20and%5Cu00a0-24%25%20at%20D4%29.%5CnCONCLUSIONS%3A%20The%20damaged%20muscle%20was%20not%20able%20to%20get%20benefits%20out%20of%20the%20increased%20plasma%20branched-chain%20amino%20acids%20availability%20to%20attenuate%20changes%20in%20indirect%20markers%20of%20muscle%20damage%20and%20muscle%20metabolic%20alterations%20following%20exercise-induced%20muscle%20damage.%22%2C%22date%22%3A%22Feb%202016%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1016%5C%2Fj.clnu.2015.03.014%22%2C%22ISSN%22%3A%221532-1983%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%226XQENTHJ%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%226M38MJ3E%22%2C%22XTA6KS7L%22%5D%2C%22dateModified%22%3A%222024-09-16T13%3A08%3A34Z%22%7D%7D%2C%7B%22key%22%3A%2266RKWJKT%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Wegrzyk%20et%20al.%22%2C%22parsedDate%22%3A%222015-07%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BWegrzyk%2C%20J.%2C%20Foure%2C%20A.%2C%20Vilmen%2C%20C.%2C%20Ghattas%2C%20B.%2C%20Maffiuletti%2C%20N.A.%2C%20Mattei%2C%20J.-P.%2C%20Place%2C%20N.%2C%20Bendahan%2C%20D.%20and%20Gondin%2C%20J.%20%282015%29%20%26%23x201C%3BExtra%20Forces%20induced%20by%20wide-pulse%2C%20high-frequency%20electrical%20stimulation%3A%20Occurrence%2C%20magnitude%2C%20variability%20and%20underlying%20mechanisms%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BClinical%20Neurophysiology%26lt%3B%5C%2Fi%26gt%3B%2C%20126%287%29%2C%20pp.%201400%26%23x2013%3B1412.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.clinph.2014.10.001%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.clinph.2014.10.001%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Extra%20Forces%20induced%20by%20wide-pulse%2C%20high-frequency%20electrical%20stimulation%3A%20Occurrence%2C%20magnitude%2C%20variability%20and%20underlying%20mechanisms%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jennifer%22%2C%22lastName%22%3A%22Wegrzyk%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Alexandre%22%2C%22lastName%22%3A%22Foure%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Badih%22%2C%22lastName%22%3A%22Ghattas%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Nicola%20A.%22%2C%22lastName%22%3A%22Maffiuletti%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jean-Pierre%22%2C%22lastName%22%3A%22Mattei%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Nicolas%22%2C%22lastName%22%3A%22Place%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julien%22%2C%22lastName%22%3A%22Gondin%22%7D%5D%2C%22abstractNote%22%3A%22Objective%3A%20In%20contrast%20to%20conventional%20%28CONV%29%20neuromuscular%20electrical%20stimulation%20%28NMES%29%2C%20the%20use%20of%20%26quot%3Bwide-pulse%2C%20high-frequencies%26quot%3B%20%28WPHF%29%20can%20generate%20higher%20forces%20than%20expected%20by%20the%20direct%20activation%20of%20motor%20axons%20alone.%20We%20aimed%20at%20investigating%20the%20occurrence%2C%20magnitude%2C%20variability%20and%20underlying%20neuromuscular%20mechanisms%20of%20these%20%26quot%3BExtra%20Forces%26quot%3B%20%28EF%29.%20Methods%3A%20Electrically-evoked%20isometric%20plantar%20flexion%20force%20was%20recorded%20in%2042%20healthy%20subjects.%20Additionally%2C%20twitch%20potentiation%2C%20H-reflex%20and%20M-wave%20responses%20were%20assessed%20in%2013%20participants.%20CONV%20%2825%20Hz%2C%200.05%20ms%29%20and%20WPHF%20%28100%20Hz%2C%201%20ms%29%20NMES%20consisted%20of%20five%20stimulation%20trains%20%2820%20s%20on-90%20s%20off%29.%20Results%3A%20K-means%20clustering%20analysis%20disclosed%20a%20responder%20rate%20of%20almost%2060%25.%20Within%20this%20group%20of%20responders%2C%20force%20significantly%20increased%20from%204%25%20to%2016%25%20of%20the%20maximal%20voluntary%20contraction%20force%20and%20H-reflexes%20were%20depressed%20after%20WPHF%20NMES.%20In%20contrast%2C%20non-responders%20showed%20neither%20EF%20nor%20H-reflex%20depression.%20Twitch%20potentiation%20and%20resting%20EMG%20data%20were%20similar%20between%20groups.%20Interestingly%2C%20a%20large%20inter-and%20intrasubject%20variability%20of%20EF%20was%20observed.%20Conclusion%3A%20The%20responder%20percentage%20was%20overestimated%20in%20previous%20studies.%20Significance%3A%20This%20study%20proposes%20a%20novel%20methodological%20framework%20for%20unraveling%20the%20neurophysiological%20mechanisms%20involved%20in%20EF%20and%20provides%20further%20evidence%20for%20a%20central%20contribution%20to%20EF%20in%20responders.%20%28C%29%202014%20International%20Federation%20of%20Clinical%20Neurophysiology.%20Published%20by%20Elsevier%20Ireland%20Ltd.%20All%20rights%20reserved.%22%2C%22date%22%3A%22JUL%202015%22%2C%22language%22%3A%22English%22%2C%22DOI%22%3A%2210.1016%5C%2Fj.clinph.2014.10.001%22%2C%22ISSN%22%3A%221388-2457%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%226XQENTHJ%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%226M38MJ3E%22%2C%22SXWA9VN6%22%5D%2C%22dateModified%22%3A%222024-12-13T09%3A15%3A27Z%22%7D%7D%2C%7B%22key%22%3A%2247SX8Q8H%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Four%5Cu00e9%20et%20al.%22%2C%22parsedDate%22%3A%222015-06%22%2C%22numChildren%22%3A2%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BFour%26%23xE9%3B%2C%20A.%2C%20Wegrzyk%2C%20J.%2C%20LE%20Fur%2C%20Y.%2C%20Mattei%2C%20J.-P.%2C%20Boudinet%2C%20H.%2C%20Vilmen%2C%20C.%2C%20Bendahan%2C%20D.%20and%20Gondin%2C%20J.%20%282015%29%20%26%23x201C%3BImpaired%20mitochondrial%20function%20and%20reduced%20energy%20cost%20as%20a%20result%20of%20muscle%20damage%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BMedicine%20and%20Science%20in%20Sports%20and%20Exercise%26lt%3B%5C%2Fi%26gt%3B%2C%2047%286%29%2C%20pp.%201135%26%23x2013%3B1144.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1249%5C%2FMSS.0000000000000523%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1249%5C%2FMSS.0000000000000523%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Impaired%20mitochondrial%20function%20and%20reduced%20energy%20cost%20as%20a%20result%20of%20muscle%20damage%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Alexandre%22%2C%22lastName%22%3A%22Four%5Cu00e9%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jennifer%22%2C%22lastName%22%3A%22Wegrzyk%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22LE%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jean-Pierre%22%2C%22lastName%22%3A%22Mattei%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22H%5Cu00e9l%5Cu00e8ne%22%2C%22lastName%22%3A%22Boudinet%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julien%22%2C%22lastName%22%3A%22Gondin%22%7D%5D%2C%22abstractNote%22%3A%22PURPOSE%3A%20Although%20it%20has%20been%20largely%20acknowledged%20that%20isometric%20neuromuscular%20electrostimulation%20%28NMES%29%20exercise%20induces%20larger%20muscle%20damage%20than%20voluntary%20contractions%2C%20the%20corresponding%20effects%20on%20muscle%20energetics%20remain%20to%20be%20determined.%20Voluntary%20exercise-induced%20muscle%20damage%20%28EIMD%29%20has%20been%20reported%20to%20have%20minor%20slight%20effects%20on%20muscle%20metabolic%20response%20to%20subsequent%20dynamic%20exercise%2C%20but%20the%20magnitude%20of%20muscle%20energetics%20alterations%20for%20NMES%20EIMD%20has%20never%20been%20documented.%5CnMETHODS%3A%20P%20magnetic%20resonance%20spectroscopy%20measurements%20were%20performed%20in%2013%20young%20healthy%20males%20during%20a%20standardized%20rest-exercise-recovery%20protocol%20before%20%28D0%29%20and%202%20d%20%28D2%29%20and%204%20d%20%28D4%29%20after%20NMES%20EIMD%20on%20knee%20extensor%20muscles.%20Changes%20in%20kinetics%20of%20phosphorylated%20metabolite%20concentrations%20%28i.e.%2C%20phosphocreatine%20%5BPCr%5D%2C%20inorganic%20phosphate%20%5BPi%5D%2C%20and%20adenosine%20triphosphate%20%5BATP%5D%29%20and%20pH%20were%20assessed%20to%20investigate%20aerobic%20and%20anaerobic%20rates%20of%20ATP%20production%20and%20energy%20cost%20of%20contraction%20%28Ec%29.%5CnRESULTS%3A%20Resting%20%5BPi%5D%5C%2F%5BPCr%5D%20ratio%20increased%20at%20D2%20%28%2B39%25%29%20and%20D4%20%28%2B29%25%29%2C%20mainly%20owing%20to%20the%20increased%20%5BPi%5D%20%28%2B43%25%20and%20%2B32%25%2C%20respectively%29%2C%20whereas%20a%20significant%20decrease%20in%20resting%20pH%20was%20determined%20%28-0.04%20pH%20unit%20and%20-0.03%20pH%20unit%2C%20respectively%29.%20PCr%20recovery%20rate%20decreased%20at%20D2%20%28-21%25%29%20and%20D4%20%28-23%25%29%20in%20conjunction%20with%20a%20significantly%20decreased%20total%20rate%20of%20ATP%20production%20at%20D4%20%28-18%25%29%20mainly%20owing%20to%20an%20altered%20aerobic%20ATP%20production%20%28-19%25%29.%20Paradoxically%2C%20Ec%20was%20decreased%20at%20D4%20%28-21%25%29.%5CnCONCLUSION%3A%20Overall%2C%20NMES%20EIMD%20led%20to%20intramuscular%20acidosis%20in%20resting%20muscle%20and%20mitochondrial%20impairment%20in%20exercising%20muscle.%20Alterations%20of%20noncontractile%20processes%20and%5C%2For%20adaptive%20mechanisms%20to%20muscle%20damage%20might%20account%20for%20the%20decreased%20Ec%20during%20the%20dynamic%20exercise.%22%2C%22date%22%3A%22Jun%202015%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1249%5C%2FMSS.0000000000000523%22%2C%22ISSN%22%3A%221530-0315%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%226XQENTHJ%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%226M38MJ3E%22%2C%22SXWA9VN6%22%5D%2C%22dateModified%22%3A%222024-12-13T09%3A12%3A44Z%22%7D%7D%2C%7B%22key%22%3A%22G6CJD2TP%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Jubeau%20et%20al.%22%2C%22parsedDate%22%3A%222015-05%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BJubeau%2C%20M.%2C%20LE%20Fur%2C%20Y.%2C%20Duhamel%2C%20G.%2C%20Wegrzyk%2C%20J.%2C%20Confort-Gouny%2C%20S.%2C%20Vilmen%2C%20C.%2C%20Cozzone%2C%20P.J.%2C%20Mattei%2C%20J.P.%2C%20Bendahan%2C%20D.%20and%20Gondin%2C%20J.%20%282015%29%20%26%23x201C%3BLocalized%20metabolic%20and%20t2%20changes%20induced%20by%20voluntary%20and%20evoked%20contractions%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BMedicine%20and%20Science%20in%20Sports%20and%20Exercise%26lt%3B%5C%2Fi%26gt%3B%2C%2047%285%29%2C%20pp.%20921%26%23x2013%3B930.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1249%5C%2FMSS.0000000000000491%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1249%5C%2FMSS.0000000000000491%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Localized%20metabolic%20and%20t2%20changes%20induced%20by%20voluntary%20and%20evoked%20contractions%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Marc%22%2C%22lastName%22%3A%22Jubeau%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22LE%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Guillaume%22%2C%22lastName%22%3A%22Duhamel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jennifer%22%2C%22lastName%22%3A%22Wegrzyk%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Sylviane%22%2C%22lastName%22%3A%22Confort-Gouny%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Patrick%20J.%22%2C%22lastName%22%3A%22Cozzone%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jean%20Pierre%22%2C%22lastName%22%3A%22Mattei%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julien%22%2C%22lastName%22%3A%22Gondin%22%7D%5D%2C%22abstractNote%22%3A%22PURPOSE%3A%20This%20study%20compared%20the%20metabolic%20and%20activation%20changes%20induced%20by%20electrically%20evoked%20%28neuromuscular%20electrical%20stimulation%20%28NMES%29%29%20and%20voluntary%20%28VOL%29%20contractions%20performed%20at%20the%20same%20submaximal%20intensity%20using%20P%20chemical%20shift%20imaging%20%28CSI%29%20and%20T2%20mapping%20investigations.%5CnMETHODS%3A%20Fifteen%20healthy%20subjects%20were%20asked%20to%20perform%20both%20NMES%20and%20VOL%20protocols%20with%20the%20knee%20extensors%20%28i.e.%2C%20232%20isometric%20contractions%20at%2030%25%20of%20maximal%20force%29%20inside%20a%203-T%20scanner%20for%20two%20experimental%20sessions.%20During%20the%20first%20session%2C%20metabolic%20variations%2C%20i.e.%2C%20phosphocreatine%20%28PCr%29%2C%20inorganic%20phosphate%20%28Pi%29%2C%20and%20pH%2C%20were%20recorded%20using%20localized%20P%20CSI.%20During%20a%20second%20session%2C%20T2%20maps%20of%20the%20knee%20extensors%20were%20obtained%20at%20rest%20and%20immediately%20after%20each%20exercise.%20Voxels%20of%20interest%20were%20selected%20from%20the%20directly%20stimulated%20vastus%20lateralis%20and%20from%20the%20nondirectly%20stimulated%20rectus%20femoris%5C%2Fvastus%20intermedius%20muscles.%5CnRESULTS%3A%20PCr%20depletion%20recorded%20throughout%20the%20NMES%20session%20was%20significantly%20larger%20in%20the%20vastus%20lateralis%20as%20compared%20with%20the%20rectus%20femoris%5C%2Fvastus%20intermedius%20muscles%20for%20both%20conditions%20%28VOL%20and%20NMES%29.%20A%20higher%20occurrence%20of%20Pi%20splitting%20and%20a%20greater%20acidosis%20was%20found%20during%20NMES%20as%20compared%20with%20VOL%20exercise%2C%20illustrating%20the%20heterogeneous%20activation%20of%20both%20slow%20and%20fast%20muscle%20fibers.%20T2%20changes%20were%20greater%20after%20NMES%20as%20compared%20with%20VOL%20for%20both%20muscles%20but%20were%20not%20necessarily%20related%20to%20the%20localized%20metabolic%20demand.%5CnCONCLUSION%3A%20We%20provided%20direct%20evidence%20that%20the%20metabolic%20demand%20was%20strongly%20related%20to%20both%20the%20exercise%20modality%20and%20the%20site%20of%20stimulation.%20On%20the%20basis%20of%20the%20occurrence%20of%20Pi%20splitting%2C%20we%20suggested%20that%20NMES%20can%20activate%20fast%20muscle%20fibers%20even%20at%20low%20force%20levels.%22%2C%22date%22%3A%22May%202015%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1249%5C%2FMSS.0000000000000491%22%2C%22ISSN%22%3A%221530-0315%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%224U7D3E9U%22%2C%22SVI8UJ6H%22%2C%226XQENTHJ%22%2C%227JR7EDKF%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%224ZGX55W3%22%2C%22SXWA9VN6%22%5D%2C%22dateModified%22%3A%222024-12-13T09%3A12%3A42Z%22%7D%7D%2C%7B%22key%22%3A%22U7TC7U3X%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Layec%20et%20al.%22%2C%22parsedDate%22%3A%222015-04-15%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BLayec%2C%20G.%2C%20Bringard%2C%20A.%2C%20Le%20Fur%2C%20Y.%2C%20Micallef%2C%20J.-P.%2C%20Vilmen%2C%20C.%2C%20Perrey%2C%20S.%2C%20Cozzone%2C%20P.J.%20and%20Bendahan%2C%20D.%20%282015%29%20%26%23x201C%3BOpposite%20effects%20of%20hyperoxia%20on%20mitochondrial%20and%20contractile%20efficiency%20in%20human%20quadriceps%20muscles%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BAmerican%20Journal%20of%20Physiology.%20Regulatory%2C%20Integrative%20and%20Comparative%20Physiology%26lt%3B%5C%2Fi%26gt%3B%2C%20308%288%29%2C%20pp.%20R724-733.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1152%5C%2Fajpregu.00461.2014%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1152%5C%2Fajpregu.00461.2014%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Opposite%20effects%20of%20hyperoxia%20on%20mitochondrial%20and%20contractile%20efficiency%20in%20human%20quadriceps%20muscles%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Gwenael%22%2C%22lastName%22%3A%22Layec%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Aur%5Cu00e9lien%22%2C%22lastName%22%3A%22Bringard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jean-Paul%22%2C%22lastName%22%3A%22Micallef%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22St%5Cu00e9phane%22%2C%22lastName%22%3A%22Perrey%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Patrick%20J.%22%2C%22lastName%22%3A%22Cozzone%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%5D%2C%22abstractNote%22%3A%22Exercise%20efficiency%20is%20an%20important%20determinant%20of%20exercise%20capacity.%20However%2C%20little%20is%20known%20about%20the%20physiological%20factors%20that%20can%20modulate%20muscle%20efficiency%20during%20exercise.%20We%20examined%20whether%20improved%20O2%20availability%20would%201%29%20impair%20mitochondrial%20efficiency%20and%20shift%20the%20energy%20production%20toward%20aerobic%20ATP%20synthesis%20and%202%29%20reduce%20the%20ATP%20cost%20of%20dynamic%20contraction%20owing%20to%20an%20improved%20neuromuscular%20efficiency%2C%20such%20that%203%29%20whole%20body%20O2%20cost%20would%20remain%20unchanged.%20We%20used%20%2831%29P-magnetic%20resonance%20spectroscopy%2C%20surface%20electromyography%2C%20and%20pulmonary%20O2%20consumption%20%28V%5Cu0307o2p%29%20measurements%20in%20eight%20active%20subjects%20during%206%20min%20of%20dynamic%20knee-extension%20exercise%20under%20different%20fractions%20of%20inspired%20O2%20%28FiO2%20%2C%200.21%20in%20normoxia%20and%201.0%20in%20hyperoxia%29.%20V%5Cu0307o2p%20%28755%20%5Cu00b1%20111%20ml%5C%2Fmin%20in%20normoxia%20and%20799%20%5Cu00b1%20188%20ml%5C%2Fmin%20in%20hyperoxia%2C%20P%20%26gt%3B%200.05%29%20and%20O2%20cost%20%28P%20%26gt%3B%200.05%29%20were%20not%20significantly%20different%20between%20normoxia%20and%20hyperoxia.%20In%20contrast%2C%20the%20total%20ATP%20synthesis%20rate%20and%20the%20ATP%20cost%20of%20dynamic%20contraction%20were%20significantly%20lower%20in%20hyperoxia%20than%20normoxia%20%28P%20%26lt%3B%200.05%29.%20As%20a%20result%2C%20the%20ratio%20of%20the%20rate%20of%20oxidative%20ATP%20synthesis%20from%20the%20quadriceps%20to%20V%5Cu0307o2p%20was%20lower%20in%20hyperoxia%20than%20normoxia%20but%20did%20not%20reach%20statistical%20significance%20%2816%20%5Cu00b1%203%20mM%5C%2Fml%20in%20normoxia%20and%2012%20%5Cu00b1%205%20mM%5C%2Fml%20in%20hyperoxia%2C%20P%20%3D%200.07%29.%20Together%2C%20these%20findings%20reveal%20dynamic%20and%20independent%20regulations%20of%20mitochondrial%20and%20contractile%20efficiency%20as%20a%20consequence%20of%20O2%20availability%20in%20young%20active%20individuals.%20Furthermore%2C%20muscle%20efficiency%20appears%20to%20be%20already%20optimized%20in%20normoxia%20and%20is%20unlikely%20to%20contribute%20to%20the%20well-established%20improvement%20in%20exercise%20capacity%20induced%20by%20hyperoxia.%22%2C%22date%22%3A%22Apr%2015%2C%202015%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1152%5C%2Fajpregu.00461.2014%22%2C%22ISSN%22%3A%221522-1490%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%224ZGX55W3%22%5D%2C%22dateModified%22%3A%222024-07-04T07%3A45%3A24Z%22%7D%7D%2C%7B%22key%22%3A%22266M33GB%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Wegrzyk%20et%20al.%22%2C%22parsedDate%22%3A%222015%22%2C%22numChildren%22%3A2%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BWegrzyk%2C%20J.%2C%20Four%26%23xE9%3B%2C%20A.%2C%20Le%20Fur%2C%20Y.%2C%20Maffiuletti%2C%20N.A.%2C%20Vilmen%2C%20C.%2C%20Guye%2C%20M.%2C%20Mattei%2C%20J.-P.%2C%20Place%2C%20N.%2C%20Bendahan%2C%20D.%20and%20Gondin%2C%20J.%20%282015%29%20%26%23x201C%3BResponders%20to%20Wide-Pulse%2C%20High-Frequency%20Neuromuscular%20Electrical%20Stimulation%20Show%20Reduced%20Metabolic%20Demand%3A%20A%2031P-MRS%20Study%20in%20Humans%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BPloS%20One%26lt%3B%5C%2Fi%26gt%3B%2C%2010%2811%29%2C%20p.%20e0143972.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1371%5C%2Fjournal.pone.0143972%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1371%5C%2Fjournal.pone.0143972%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Responders%20to%20Wide-Pulse%2C%20High-Frequency%20Neuromuscular%20Electrical%20Stimulation%20Show%20Reduced%20Metabolic%20Demand%3A%20A%2031P-MRS%20Study%20in%20Humans%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jennifer%22%2C%22lastName%22%3A%22Wegrzyk%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Alexandre%22%2C%22lastName%22%3A%22Four%5Cu00e9%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Nicola%20A.%22%2C%22lastName%22%3A%22Maffiuletti%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Maxime%22%2C%22lastName%22%3A%22Guye%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jean-Pierre%22%2C%22lastName%22%3A%22Mattei%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Nicolas%22%2C%22lastName%22%3A%22Place%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julien%22%2C%22lastName%22%3A%22Gondin%22%7D%5D%2C%22abstractNote%22%3A%22Conventional%20%28CONV%29%20neuromuscular%20electrical%20stimulation%20%28NMES%29%20%28i.e.%2C%20short%20pulse%20duration%2C%20low%20frequencies%29%20induces%20a%20higher%20energetic%20response%20as%20compared%20to%20voluntary%20contractions%20%28VOL%29.%20In%20contrast%2C%20wide-pulse%2C%20high-frequency%20%28WPHF%29%20NMES%20might%20elicit-at%20least%20in%20some%20subjects%20%28i.e.%2C%20responders%29-a%20different%20motor%20unit%20recruitment%20compared%20to%20CONV%20that%20resembles%20the%20physiological%20muscle%20activation%20pattern%20of%20VOL.%20We%20therefore%20hypothesized%20that%20for%20these%20responder%20subjects%2C%20the%20metabolic%20demand%20of%20WPHF%20would%20be%20lower%20than%20CONV%20and%20comparable%20to%20VOL.%2018%20healthy%20subjects%20performed%20isometric%20plantar%20flexions%20at%2010%25%20of%20their%20maximal%20voluntary%20contraction%20force%20for%20CONV%20%2825%20Hz%2C%200.05%20ms%29%2C%20WPHF%20%28100%20Hz%2C%201%20ms%29%20and%20VOL%20protocols.%20For%20each%20protocol%2C%20force%20time%20integral%20%28FTI%29%20was%20quantified%20and%20subjects%20were%20classified%20as%20responders%20and%20non-responders%20to%20WPHF%20based%20on%20k-means%20clustering%20analysis.%20Furthermore%2C%20a%20fatigue%20index%20based%20on%20FTI%20loss%20at%20the%20end%20of%20each%20protocol%20compared%20with%20the%20beginning%20of%20the%20protocol%20was%20calculated.%20Phosphocreatine%20depletion%20%28%5Cu0394PCr%29%20was%20assessed%20using%2031P%20magnetic%20resonance%20spectroscopy.%20Responders%20developed%20four%20times%20higher%20FTI%26%23039%3Bs%20during%20WPHF%20%2899%20%5Cu00b1%2037%20%5Cu00d7103%20N.s%29%20than%20non-responders%20%2826%20%5Cu00b1%2012%20%5Cu00d7103%20N.s%29.%20For%20both%20responders%20and%20non-responders%2C%20CONV%20was%20metabolically%20more%20demanding%20than%20VOL%20when%20%5Cu0394PCr%20was%20expressed%20relative%20to%20the%20FTI.%20Only%20for%20the%20responder%20group%2C%20the%20%5Cu2206PCr%5C%2FFTI%20ratio%20of%20WPHF%20%280.74%20%5Cu00b1%200.19%20M%5C%2FN.s%29%20was%20significantly%20lower%20compared%20to%20CONV%20%281.48%20%5Cu00b1%200.46%20M%5C%2FN.s%29%20but%20similar%20to%20VOL%20%280.65%20%5Cu00b1%200.21%20M%5C%2FN.s%29.%20Moreover%2C%20the%20fatigue%20index%20was%20not%20different%20between%20WPHF%20%28-16%25%29%20and%20CONV%20%28-25%25%29%20for%20the%20responders.%20WPHF%20could%20therefore%20be%20considered%20as%20the%20less%20demanding%20NMES%20modality-at%20least%20in%20this%20subgroup%20of%20subjects-by%20possibly%20exhibiting%20a%20muscle%20activation%20pattern%20similar%20to%20VOL%20contractions.%22%2C%22date%22%3A%222015%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1371%5C%2Fjournal.pone.0143972%22%2C%22ISSN%22%3A%221932-6203%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%226XQENTHJ%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%226M38MJ3E%22%2C%22SXWA9VN6%22%2C%22XTA6KS7L%22%5D%2C%22dateModified%22%3A%222024-12-13T09%3A12%3A43Z%22%7D%7D%2C%7B%22key%22%3A%22XEQMF38V%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1495222%2C%22username%22%3A%22crmbmlab%22%2C%22name%22%3A%22crmbmlab%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fcrmbmlab%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Yashiro%20et%20al.%22%2C%22parsedDate%22%3A%222015%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BYashiro%2C%20K.%2C%20Tonson%2C%20A.%2C%20Pecchi%2C%20%26%23xC9%3B.%2C%20Vilmen%2C%20C.%2C%20Le%20Fur%2C%20Y.%2C%20Bernard%2C%20M.%2C%20Bendahan%2C%20D.%20and%20Giannesini%2C%20B.%20%282015%29%20%26%23x201C%3BCapsiate%20Supplementation%20Reduces%20Oxidative%20Cost%20of%20Contraction%20in%20Exercising%20Mouse%20Skeletal%20Muscle%20In%20Vivo%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BPloS%20One%26lt%3B%5C%2Fi%26gt%3B%2C%2010%286%29%2C%20p.%20e0128016.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1371%5C%2Fjournal.pone.0128016%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1371%5C%2Fjournal.pone.0128016%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Capsiate%20Supplementation%20Reduces%20Oxidative%20Cost%20of%20Contraction%20in%20Exercising%20Mouse%20Skeletal%20Muscle%20In%20Vivo%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Kazuya%22%2C%22lastName%22%3A%22Yashiro%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Anne%22%2C%22lastName%22%3A%22Tonson%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22%5Cu00c9milie%22%2C%22lastName%22%3A%22Pecchi%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Monique%22%2C%22lastName%22%3A%22Bernard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Beno%5Cu00eet%22%2C%22lastName%22%3A%22Giannesini%22%7D%5D%2C%22abstractNote%22%3A%22Chronic%20administration%20of%20capsiate%20is%20known%20to%20accelerate%20whole-body%20basal%20energy%20metabolism%2C%20but%20the%20consequences%20in%20exercising%20skeletal%20muscle%20remain%20very%20poorly%20documented.%20In%20order%20to%20clarify%20this%20issue%2C%20the%20effect%20of%202-week%20daily%20administration%20of%20either%20vehicle%20%28control%29%20or%20purified%20capsiate%20%28at%2010-%20or%20100-mg%5C%2Fkg%20body%20weight%29%20on%20skeletal%20muscle%20function%20and%20energetics%20were%20investigated%20throughout%20a%20multidisciplinary%20approach%20combining%20in%20vivo%20and%20in%20vitro%20measurements%20in%20mice.%20Mechanical%20performance%20and%20energy%20metabolism%20were%20assessed%20strictly%20non-invasively%20in%20contracting%20gastrocnemius%20muscle%20using%20magnetic%20resonance%20%28MR%29%20imaging%20and%2031-phosphorus%20MR%20spectroscopy%20%2831P-MRS%29.%20Regardless%20of%20the%20dose%2C%20capsiate%20treatments%20markedly%20disturbed%20basal%20bioenergetics%20in%20vivo%20including%20intracellular%20pH%20alkalosis%20and%20decreased%20phosphocreatine%20content.%20Besides%2C%20capsiate%20administration%20did%20affect%20neither%20mitochondrial%20uncoupling%20protein-3%20gene%20expression%20nor%20both%20basal%20and%20maximal%20oxygen%20consumption%20in%20isolated%20saponin-permeabilized%20fibers%2C%20but%20decreased%20by%20about%20twofold%20the%20Km%20of%20mitochondrial%20respiration%20for%20ADP.%20During%20a%20standardized%20in%20vivo%20fatiguing%20protocol%20%286-min%20of%20repeated%20maximal%20isometric%20contractions%20electrically%20induced%20at%20a%20frequency%20of%201.7%20Hz%29%2C%20both%20capsiate%20treatments%20reduced%20oxidative%20cost%20of%20contraction%20by%2030-40%25%2C%20whereas%20force-generating%20capacity%20and%20fatigability%20were%20not%20changed.%20Moreover%2C%20the%20rate%20of%20phosphocreatine%20resynthesis%20during%20the%20post-electrostimulation%20recovery%20period%20remained%20unaffected%20by%20capsiate.%20Both%20capsiate%20treatments%20further%20promoted%20muscle%20mass%20gain%2C%20and%20the%20higher%20dose%20also%20reduced%20body%20weight%20gain%20and%20abdominal%20fat%20content.%20These%20findings%20demonstrate%20that%2C%20in%20addition%20to%20its%20anti-obesity%20effect%2C%20capsiate%20supplementation%20improves%20oxidative%20metabolism%20in%20exercising%20muscle%2C%20which%20strengthen%20this%20compound%20as%20a%20natural%20compound%20for%20improving%20health.%22%2C%22date%22%3A%222015%22%2C%22language%22%3A%22ENG%22%2C%22DOI%22%3A%2210.1371%5C%2Fjournal.pone.0128016%22%2C%22ISSN%22%3A%221932-6203%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%227FK4UDH9%22%2C%225Z6CVJGB%22%2C%22NW6SZQBR%22%2C%226DHTGFMA%22%5D%2C%22dateModified%22%3A%222017-11-07T14%3A26%3A00Z%22%7D%7D%2C%7B%22key%22%3A%22EJE3RXSV%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1495222%2C%22username%22%3A%22crmbmlab%22%2C%22name%22%3A%22crmbmlab%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fcrmbmlab%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Macia%20et%20al.%22%2C%22parsedDate%22%3A%222015%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BMacia%2C%20M.%2C%20Pecchi%2C%20E.%2C%20Vilmen%2C%20C.%2C%20Desrois%2C%20M.%2C%20Lan%2C%20C.%2C%20Portha%2C%20B.%2C%20Bernard%2C%20M.%2C%20Bendahan%2C%20D.%20and%20Giannesini%2C%20B.%20%282015%29%20%26%23x201C%3BInsulin%20Resistance%20Is%20Not%20Associated%20with%20an%20Impaired%20Mitochondrial%20Function%20in%20Contracting%20Gastrocnemius%20Muscle%20of%20Goto-Kakizaki%20Diabetic%20Rats%20In%20Vivo%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BPloS%20One%26lt%3B%5C%2Fi%26gt%3B%2C%2010%286%29%2C%20p.%20e0129579.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1371%5C%2Fjournal.pone.0129579%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1371%5C%2Fjournal.pone.0129579%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Insulin%20Resistance%20Is%20Not%20Associated%20with%20an%20Impaired%20Mitochondrial%20Function%20in%20Contracting%20Gastrocnemius%20Muscle%20of%20Goto-Kakizaki%20Diabetic%20Rats%20In%20Vivo%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Michael%22%2C%22lastName%22%3A%22Macia%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Emilie%22%2C%22lastName%22%3A%22Pecchi%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Martine%22%2C%22lastName%22%3A%22Desrois%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Carole%22%2C%22lastName%22%3A%22Lan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Bernard%22%2C%22lastName%22%3A%22Portha%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Monique%22%2C%22lastName%22%3A%22Bernard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Beno%5Cu00eet%22%2C%22lastName%22%3A%22Giannesini%22%7D%5D%2C%22abstractNote%22%3A%22Insulin%20resistance%2C%20altered%20lipid%20metabolism%20and%20mitochondrial%20dysfunction%20in%20skeletal%20muscle%20would%20play%20a%20major%20role%20in%20type%202%20diabetes%20mellitus%20%28T2DM%29%20development%2C%20but%20the%20causal%20relationships%20between%20these%20events%20remain%20conflicting.%20To%20clarify%20this%20issue%2C%20gastrocnemius%20muscle%20function%20and%20energetics%20were%20investigated%20throughout%20a%20multidisciplinary%20approach%20combining%20in%20vivo%20and%20in%20vitro%20measurements%20in%20Goto-Kakizaki%20%28GK%29%20rats%2C%20a%20non-obese%20T2DM%20model%20developing%20peripheral%20insulin%20resistant%20without%20abnormal%20level%20of%20plasma%20non-esterified%20fatty%20acids%20%28NEFA%29.%20Wistar%20rats%20were%20used%20as%20controls.%20Mechanical%20performance%20and%20energy%20metabolism%20were%20assessed%20strictly%20non-invasively%20using%20magnetic%20resonance%20%28MR%29%20imaging%20and%2031-phosphorus%20MR%20spectroscopy%20%2831P-MRS%29.%20Compared%20with%20control%20group%2C%20plasma%20insulin%20and%20glucose%20were%20respectively%20lower%20and%20higher%20in%20GK%20rats%2C%20but%20plasma%20NEFA%20level%20was%20normal.%20In%20resting%20GK%20muscle%2C%20phosphocreatine%20content%20was%20reduced%20whereas%20glucose%20content%20and%20intracellular%20pH%20were%20both%20higher.%20However%2C%20there%20were%20not%20differences%20between%20both%20groups%20for%20basal%20oxidative%20ATP%20synthesis%20rate%2C%20citrate%20synthase%20activity%2C%20and%20intramyocellular%20contents%20for%20lipids%2C%20glycogen%2C%20ATP%20and%20ADP%20%28an%20important%20in%20vivo%20mitochondrial%20regulator%29.%20During%20a%20standardized%20fatiguing%20protocol%20%286%20min%20of%20maximal%20repeated%20isometric%20contractions%20electrically%20induced%20at%20a%20frequency%20of%201.7%20Hz%29%2C%20mechanical%20performance%20and%20glycolytic%20ATP%20production%20rate%20were%20reduced%20in%20diabetic%20animals%20whereas%20oxidative%20ATP%20production%20rate%2C%20maximal%20mitochondrial%20capacity%20and%20ATP%20cost%20of%20contraction%20were%20not%20changed.%20These%20findings%20provide%20in%20vivo%20evidence%20that%20insulin%20resistance%20is%20not%20caused%20by%20an%20impairment%20of%20mitochondrial%20function%20in%20this%20diabetic%20model.%22%2C%22date%22%3A%222015%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1371%5C%2Fjournal.pone.0129579%22%2C%22ISSN%22%3A%221932-6203%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%227FK4UDH9%22%2C%225Z6CVJGB%22%2C%2265EHX9KZ%22%2C%22NW6SZQBR%22%2C%226AT58F9E%22%2C%226DHTGFMA%22%2C%22XFDDFPPR%22%5D%2C%22dateModified%22%3A%222017-11-07T14%3A28%3A55Z%22%7D%7D%2C%7B%22key%22%3A%2258FN8QGG%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1495222%2C%22username%22%3A%22crmbmlab%22%2C%22name%22%3A%22crmbmlab%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fcrmbmlab%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Gondin%20et%20al.%22%2C%22parsedDate%22%3A%222014-08%22%2C%22numChildren%22%3A2%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BGondin%2C%20J.%2C%20Vilmen%2C%20C.%2C%20Cozzone%2C%20P.J.%2C%20Bendahan%2C%20D.%20and%20Duhamel%2C%20G.%20%282014%29%20%26%23x201C%3BHigh-field%20%2811.75T%29%20multimodal%20MR%20imaging%20of%20exercising%20hindlimb%20mouse%20muscles%20using%20a%20non-invasive%20combined%20stimulation%20and%20force%20measurement%20device%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BNMR%20in%20biomedicine%26lt%3B%5C%2Fi%26gt%3B%2C%2027%288%29%2C%20pp.%20870%26%23x2013%3B879.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1002%5C%2Fnbm.3122%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1002%5C%2Fnbm.3122%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22High-field%20%2811.75T%29%20multimodal%20MR%20imaging%20of%20exercising%20hindlimb%20mouse%20muscles%20using%20a%20non-invasive%20combined%20stimulation%20and%20force%20measurement%20device%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julien%22%2C%22lastName%22%3A%22Gondin%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Patrick%20J.%22%2C%22lastName%22%3A%22Cozzone%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Guillaume%22%2C%22lastName%22%3A%22Duhamel%22%7D%5D%2C%22abstractNote%22%3A%22We%20have%20designed%20and%20constructed%20an%20experimental%20set-up%20allowing%20electrical%20stimulation%20of%20hindlimb%20mouse%20muscles%20and%20the%20corresponding%20force%20measurements%20at%20high-field%20%2811.75T%29.%20We%20performed%20high-resolution%20multimodal%20MRI%20%28including%20T2%20-weighted%20imaging%2C%20angiography%20and%20diffusion%29%20and%20analysed%20the%20corresponding%20MRI%20changes%20in%20response%20to%20a%20stimulation%20protocol.%20Mice%20were%20tested%20twice%20over%20a%201-week%20period%20to%20investigate%20the%20reliability%20of%20mechanical%20measurements%20and%20T2%20changes%20associated%20with%20the%20stimulation%20protocol.%20Additionally%2C%20angiographic%20images%20were%20obtained%20before%20and%20immediately%20after%20the%20stimulation%20protocol.%20Finally%2C%20multislice%20diffusion%20imaging%20was%20performed%20before%2C%20during%20and%20immediately%20after%20the%20stimulation%20session.%20Apparent%20diffusion%20coefficient%20%28ADC%29%20maps%20were%20calculated%20on%20the%20basis%20of%20diffusion%20weighted%20images%20%28DWI%29.%20Both%20force%20production%20and%20T2%20values%20were%20highly%20reproducible%20as%20illustrated%20by%20the%20low%20coefficient%20of%20variation%20%28%26lt%3B8%25%29%20and%20high%20intraclass%20correlation%20coefficient%20%28%5Cu22650.75%29%20values.%20Maximum%20intensity%20projection%20angiographic%20images%20clearly%20showed%20a%20strong%20vascular%20effect%20resulting%20from%20the%20stimulation%20protocol.%20Although%20a%20motion%20sensitive%20imaging%20sequence%20was%20used%20%28echo%20planar%20imaging%29%20and%20in%20spite%20of%20the%20strong%20muscle%20contractions%2C%20motion%20artifacts%20were%20minimal%20for%20DWI%20recorded%20under%20exercising%20conditions%2C%20thereby%20underlining%20the%20robustness%20of%20the%20measurements.%20Mean%20ADC%20values%20increased%20under%20exercising%20conditions%20and%20were%20higher%20during%20the%20recovery%20period%20as%20compared%20with%20the%20corresponding%20control%20values.%20The%20proposed%20experimental%20approach%20demonstrates%20accurate%20high-field%20multimodal%20MRI%20muscle%20investigations%20at%20a%20preclinical%20level%20which%20is%20of%20interest%20for%20monitoring%20the%20severity%20and%5C%2For%20the%20progression%20of%20neuromuscular%20diseases%20but%20also%20for%20assessing%20the%20efficacy%20of%20potential%20therapeutic%20interventions.%22%2C%22date%22%3A%22Aug%202014%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1002%5C%2Fnbm.3122%22%2C%22ISSN%22%3A%221099-1492%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%224U7D3E9U%22%2C%226XQENTHJ%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%224ZGX55W3%22%5D%2C%22dateModified%22%3A%222016-06-24T15%3A57%3A18Z%22%7D%7D%2C%7B%22key%22%3A%22C67PAVQP%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1495222%2C%22username%22%3A%22crmbmlab%22%2C%22name%22%3A%22crmbmlab%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fcrmbmlab%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Kazuya%20et%20al.%22%2C%22parsedDate%22%3A%222014-05-15%22%2C%22numChildren%22%3A2%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BKazuya%2C%20Y.%2C%20Tonson%2C%20A.%2C%20Pecchi%2C%20E.%2C%20Dalmasso%2C%20C.%2C%20Vilmen%2C%20C.%2C%20Fur%2C%20Y.L.%2C%20Bernard%2C%20M.%2C%20Bendahan%2C%20D.%20and%20Giannesini%2C%20B.%20%282014%29%20%26%23x201C%3BA%20single%20intake%20of%20capsiate%20improves%20mechanical%20performance%20and%20bioenergetics%20efficiency%20in%20contracting%20mouse%20skeletal%20muscle%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BAmerican%20Journal%20of%20Physiology.%20Endocrinology%20and%20Metabolism%26lt%3B%5C%2Fi%26gt%3B%2C%20306%2810%29%2C%20pp.%20E1110-1119.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1152%5C%2Fajpendo.00520.2013%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1152%5C%2Fajpendo.00520.2013%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22A%20single%20intake%20of%20capsiate%20improves%20mechanical%20performance%20and%20bioenergetics%20efficiency%20in%20contracting%20mouse%20skeletal%20muscle%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yashiro%22%2C%22lastName%22%3A%22Kazuya%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Anne%22%2C%22lastName%22%3A%22Tonson%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Emilie%22%2C%22lastName%22%3A%22Pecchi%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christiane%22%2C%22lastName%22%3A%22Dalmasso%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%20Le%22%2C%22lastName%22%3A%22Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Monique%22%2C%22lastName%22%3A%22Bernard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Beno%5Cu00eet%22%2C%22lastName%22%3A%22Giannesini%22%7D%5D%2C%22abstractNote%22%3A%22Capsiate%20is%20known%20to%20increase%20whole%20body%20oxygen%20consumption%20possibly%20via%20the%20activation%20of%20uncoupling%20processes%2C%20but%20its%20effect%20at%20the%20skeletal%20muscle%20level%20remains%20poorly%20documented%20and%20conflicting.%20To%20clarify%20this%20issue%2C%20gastrocnemius%20muscle%20function%20and%20energetics%20were%20investigated%20in%20mice%202%20h%20after%20a%20single%20intake%20of%20either%20vehicle%20%28control%29%20or%20purified%20capsiate%20%28at%2010%20or%20100%20mg%5C%2Fkg%20body%20wt%29%20through%20a%20multidisciplinary%20approach%20combining%20in%20vivo%20and%20in%20vitro%20measurements.%20Mechanical%20performance%20and%20energy%20pathway%20fluxes%20were%20assessed%20strictly%20noninvasively%20during%20a%20standardized%20electrostimulation-induced%20exercise%2C%20using%20an%20original%20device%20implementing%2031-phosphorus%20magnetic%20resonance%20spectroscopy%2C%20and%20mitochondrial%20respiration%20was%20evaluated%20in%20isolated%20saponin-permeabilized%20fibers.%20Compared%20with%20control%2C%20both%20capsiate%20doses%20produced%20quantitatively%20similar%20effects%20at%20the%20energy%20metabolism%20level%2C%20including%20an%20about%20twofold%20decrease%20of%20the%20mitochondrial%20respiration%20sensitivity%20for%20ADP.%20Interestingly%2C%20they%20did%20not%20alter%20either%20oxidative%20phosphorylation%20or%20uncoupling%20protein%203%20gene%20expression%20at%20rest.%20During%206%20min%20of%20maximal%20repeated%20isometric%20contractions%2C%20both%20doses%20reduced%20the%20amount%20of%20ATP%20produced%20from%20glycolysis%20and%20oxidative%20phosphorylation%20but%20increased%20the%20relative%20contribution%20of%20oxidative%20phosphorylation%20to%20total%20energy%20turnover%20%28%2B28%20and%20%2B21%25%20in%20the%2010-%20and%20100-mg%20groups%2C%20respectively%29.%20ATP%20cost%20of%20twitch%20force%20generation%20was%20further%20reduced%20in%20the%2010-%20%28-35%25%29%20and%20100-mg%20%28-45%25%29%20groups.%20Besides%2C%20the%20highest%20capsiate%20dose%20also%20increased%20the%20twitch%20force-generating%20capacity.%20These%20data%20present%20capsiate%20as%20a%20helpful%20candidate%20to%20enhance%20both%20muscle%20performance%20and%20oxidative%20phosphorylation%20during%20exercise%2C%20which%20could%20constitute%20a%20nutritional%20approach%20for%20improving%20health%20and%20preventing%20obesity%20and%20associated%20metabolic%20disorders.%22%2C%22date%22%3A%22May%2015%2C%202014%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1152%5C%2Fajpendo.00520.2013%22%2C%22ISSN%22%3A%221522-1555%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%227FK4UDH9%22%2C%225Z6CVJGB%22%2C%22NW6SZQBR%22%2C%226DHTGFMA%22%5D%2C%22dateModified%22%3A%222014-09-17T18%3A46%3A49Z%22%7D%7D%2C%7B%22key%22%3A%22JHCJ8SAF%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Gineste%20et%20al.%22%2C%22parsedDate%22%3A%222014%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BGineste%2C%20C.%2C%20Ottenheijm%2C%20C.%2C%20Le%20Fur%2C%20Y.%2C%20Banzet%2C%20S.%2C%20Pecchi%2C%20E.%2C%20Vilmen%2C%20C.%2C%20Cozzone%2C%20P.J.%2C%20Koulmann%2C%20N.%2C%20Hardeman%2C%20E.C.%2C%20Bendahan%2C%20D.%20and%20Gondin%2C%20J.%20%282014%29%20%26%23x201C%3BAlterations%20at%20the%20cross-bridge%20level%20are%20associated%20with%20a%20paradoxical%20gain%20of%20muscle%20function%20in%20vivo%20in%20a%20mouse%20model%20of%20nemaline%20myopathy%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BPloS%20One%26lt%3B%5C%2Fi%26gt%3B%2C%209%289%29%2C%20p.%20e109066.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1371%5C%2Fjournal.pone.0109066%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1371%5C%2Fjournal.pone.0109066%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Alterations%20at%20the%20cross-bridge%20level%20are%20associated%20with%20a%20paradoxical%20gain%20of%20muscle%20function%20in%20vivo%20in%20a%20mouse%20model%20of%20nemaline%20myopathy%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Charlotte%22%2C%22lastName%22%3A%22Gineste%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Coen%22%2C%22lastName%22%3A%22Ottenheijm%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22S%5Cu00e9bastien%22%2C%22lastName%22%3A%22Banzet%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Emilie%22%2C%22lastName%22%3A%22Pecchi%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Patrick%20J.%22%2C%22lastName%22%3A%22Cozzone%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Nathalie%22%2C%22lastName%22%3A%22Koulmann%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Edna%20C.%22%2C%22lastName%22%3A%22Hardeman%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julien%22%2C%22lastName%22%3A%22Gondin%22%7D%5D%2C%22abstractNote%22%3A%22Nemaline%20myopathy%20is%20the%20most%20common%20disease%20entity%20among%20non-dystrophic%20skeletal%20muscle%20congenital%20diseases.%20The%20first%20disease%20causing%20mutation%20%28Met9Arg%29%20was%20identified%20in%20the%20gene%20encoding%20%5Cu03b1-tropomyosinslow%20gene%20%28TPM3%29.%20Considering%20the%20conflicting%20findings%20of%20the%20previous%20studies%20on%20the%20transgenic%20%28Tg%29%20mice%20carrying%20the%20TPM3Met9Arg%20mutation%2C%20we%20investigated%20carefully%20the%20effect%20of%20the%20Met9Arg%20mutation%20in%208-9%20month-old%20Tg%28TPM3%29Met9Arg%20mice%20on%20muscle%20function%20using%20a%20multiscale%20methodological%20approach%20including%20skinned%20muscle%20fibers%20analysis%20and%20in%20vivo%20investigations%20by%20magnetic%20resonance%20imaging%20and%2031-phosphorus%20magnetic%20resonance%20spectroscopy.%20While%20in%20vitro%20maximal%20force%20production%20was%20reduced%20in%20Tg%28TPM3%29Met9Arg%20mice%20as%20compared%20to%20controls%2C%20in%20vivo%20measurements%20revealed%20an%20improved%20mechanical%20performance%20in%20the%20transgenic%20mice%20as%20compared%20to%20the%20former.%20The%20reduced%20in%20vitro%20muscle%20force%20might%20be%20related%20to%20alterations%20occuring%20at%20the%20cross-bridges%20level%20with%20muscle-specific%20underlying%20mechanisms.%20In%20vivo%20muscle%20improvement%20was%20not%20associated%20with%20any%20changes%20in%20either%20muscle%20volume%20or%20energy%20metabolism.%20Our%20findings%20indicate%20that%20TPM3%28Met9Arg%29%20mutation%20leads%20to%20a%20mild%20muscle%20weakness%20in%20vitro%20related%20to%20an%20alteration%20at%20the%20cross-bridges%20level%20and%20a%20paradoxical%20gain%20of%20muscle%20function%20in%20vivo.%20These%20results%20clearly%20point%20out%20that%20in%20vitro%20alterations%20are%20muscle-dependent%20and%20do%20not%20necessarily%20translate%20into%20similar%20changes%20in%20vivo.%22%2C%22date%22%3A%222014%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1371%5C%2Fjournal.pone.0109066%22%2C%22ISSN%22%3A%221932-6203%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%226XQENTHJ%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%224ZGX55W3%22%2C%228MP7SHDW%22%5D%2C%22dateModified%22%3A%222024-12-19T15%3A16%3A41Z%22%7D%7D%2C%7B%22key%22%3A%225JJ98QBA%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Four%5Cu00e9%20et%20al.%22%2C%22parsedDate%22%3A%222014%22%2C%22numChildren%22%3A2%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BFour%26%23xE9%3B%2C%20A.%2C%20Nosaka%2C%20K.%2C%20Wegrzyk%2C%20J.%2C%20Duhamel%2C%20G.%2C%20Le%20Troter%2C%20A.%2C%20Boudinet%2C%20H.%2C%20Mattei%2C%20J.-P.%2C%20Vilmen%2C%20C.%2C%20Jubeau%2C%20M.%2C%20Bendahan%2C%20D.%20and%20Gondin%2C%20J.%20%282014%29%20%26%23x201C%3BTime%20course%20of%20central%20and%20peripheral%20alterations%20after%20isometric%20neuromuscular%20electrical%20stimulation-induced%20muscle%20damage%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BPloS%20One%26lt%3B%5C%2Fi%26gt%3B%2C%209%289%29%2C%20p.%20e107298.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1371%5C%2Fjournal.pone.0107298%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1371%5C%2Fjournal.pone.0107298%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Time%20course%20of%20central%20and%20peripheral%20alterations%20after%20isometric%20neuromuscular%20electrical%20stimulation-induced%20muscle%20damage%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Alexandre%22%2C%22lastName%22%3A%22Four%5Cu00e9%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Kazunori%22%2C%22lastName%22%3A%22Nosaka%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jennifer%22%2C%22lastName%22%3A%22Wegrzyk%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Guillaume%22%2C%22lastName%22%3A%22Duhamel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Arnaud%22%2C%22lastName%22%3A%22Le%20Troter%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22H%5Cu00e9l%5Cu00e8ne%22%2C%22lastName%22%3A%22Boudinet%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jean-Pierre%22%2C%22lastName%22%3A%22Mattei%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Marc%22%2C%22lastName%22%3A%22Jubeau%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julien%22%2C%22lastName%22%3A%22Gondin%22%7D%5D%2C%22abstractNote%22%3A%22Isometric%20contractions%20induced%20by%20neuromuscular%20electrostimulation%20%28NMES%29%20have%20been%20shown%20to%20result%20in%20a%20prolonged%20force%20decrease%20but%20the%20time%20course%20of%20the%20potential%20central%20and%20peripheral%20factors%20have%20never%20been%20investigated.%20This%20study%20examined%20the%20specific%20time%20course%20of%20central%20and%20peripheral%20factors%20after%20isometric%20NMES-induced%20muscle%20damage.%20Twenty-five%20young%20healthy%20men%20were%20subjected%20to%20an%20NMES%20exercise%20consisting%20of%2040%20contractions%20for%20both%20legs.%20Changes%20in%20maximal%20voluntary%20contraction%20force%20of%20the%20knee%20extensors%20%28MVC%29%2C%20peak%20evoked%20force%20during%20double%20stimulations%20at%2010%20Hz%20%28Db10%29%20and%20100%20Hz%20%28Db100%29%2C%20its%20ratio%20%2810%5Cu2236100%29%2C%20voluntary%20activation%2C%20muscle%20soreness%20and%20plasma%20creatine%20kinase%20activity%20were%20assessed%20before%2C%20immediately%20after%20and%20throughout%20four%20days%20after%20NMES%20session.%20Changes%20in%20knee%20extensors%20volume%20and%20T2%20relaxation%20time%20were%20also%20assessed%20at%20two%20%28D2%29%20and%20four%20%28D4%29%20days%20post-exercise.%20MVC%20decreased%20by%2029%25%20immediately%20after%20NMES%20session%20and%20was%20still%2019%25%20lower%20than%20the%20baseline%20value%20at%20D4.%20The%20decrease%20in%20Db10%20was%20higher%20than%20in%20Db100%20immediately%20and%20one%20day%20post-exercise%20resulting%20in%20a%20decrease%20%28-12%25%29%20in%20the%2010%5Cu2236100%20ratio.%20On%20the%20contrary%2C%20voluntary%20activation%20significantly%20decreased%20at%20D2%20%28-5%25%29%20and%20was%20still%20depressed%20at%20D4%20%28-5%25%29.%20Muscle%20soreness%20and%20plasma%20creatine%20kinase%20activity%20increased%20after%20NMES%20and%20peaked%20at%20D2%20and%20D4%2C%20respectively.%20T2%20was%20also%20increased%20at%20D2%20%286%25%29%20and%20D4%20%289%25%29.%20Additionally%2C%20changes%20in%20MVC%20and%20peripheral%20factors%20%28e.g.%2C%20Db100%29%20were%20correlated%20on%20the%20full%20recovery%20period%2C%20while%20a%20significant%20correlation%20was%20found%20between%20changes%20in%20MVC%20and%20VA%20only%20from%20D2%20to%20D4.%20The%20decrease%20in%20MVC%20recorded%20immediately%20after%20the%20NMES%20session%20was%20mainly%20due%20to%20peripheral%20changes%20while%20both%20central%20and%20peripheral%20contributions%20were%20involved%20in%20the%20prolonged%20force%20reduction.%20Interestingly%2C%20the%20chronological%20events%20differ%20from%20what%20has%20been%20reported%20so%20far%20for%20voluntary%20exercise-induced%20muscle%20damage.%22%2C%22date%22%3A%222014%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1371%5C%2Fjournal.pone.0107298%22%2C%22ISSN%22%3A%221932-6203%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%224U7D3E9U%22%2C%226XQENTHJ%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%226M38MJ3E%22%2C%22SXWA9VN6%22%2C%225P5FWCR9%22%5D%2C%22dateModified%22%3A%222024-12-13T09%3A12%3A42Z%22%7D%7D%2C%7B%22key%22%3A%22R8R7VBW9%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1495222%2C%22username%22%3A%22crmbmlab%22%2C%22name%22%3A%22crmbmlab%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fcrmbmlab%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Giannesini%20et%20al.%22%2C%22parsedDate%22%3A%222013-07-01%22%2C%22numChildren%22%3A2%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BGiannesini%2C%20B.%2C%20Vilmen%2C%20C.%2C%20Amthor%2C%20H.%2C%20Bernard%2C%20M.%20and%20Bendahan%2C%20D.%20%282013%29%20%26%23x201C%3BLack%20of%20myostatin%20impairs%20mechanical%20performance%20and%20ATP%20cost%20of%20contraction%20in%20exercising%20mouse%20gastrocnemius%20muscle%20in%20vivo%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BAmerican%20journal%20of%20physiology.%20Endocrinology%20and%20metabolism%26lt%3B%5C%2Fi%26gt%3B%2C%20305%281%29%2C%20pp.%20E33-40.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1152%5C%2Fajpendo.00651.2012%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1152%5C%2Fajpendo.00651.2012%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Lack%20of%20myostatin%20impairs%20mechanical%20performance%20and%20ATP%20cost%20of%20contraction%20in%20exercising%20mouse%20gastrocnemius%20muscle%20in%20vivo%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Beno%5Cu00eet%22%2C%22lastName%22%3A%22Giannesini%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Helge%22%2C%22lastName%22%3A%22Amthor%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Monique%22%2C%22lastName%22%3A%22Bernard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%5D%2C%22abstractNote%22%3A%22Although%20it%20is%20well%20established%20that%20the%20lack%20of%20myostatin%20%28Mstn%29%20promotes%20skeletal%20muscle%20hypertrophy%2C%20the%20corresponding%20changes%20regarding%20force%20generation%20have%20been%20studied%20mainly%20in%20vitro%20and%20remain%20conflicting.%20Furthermore%2C%20the%20metabolic%20underpinnings%20of%20these%20changes%20are%20very%20poorly%20documented.%20To%20clarify%20this%20issue%2C%20we%20have%20investigated%20strictly%20noninvasively%20in%20vivo%20the%20impact%20of%20the%20lack%20of%20Mstn%20on%20gastrocnemius%20muscle%20function%20and%20energetics%20in%20Mstn-targeted%20knockout%20%28Mstn-%5C%2F-%29%20mice%20using%20%5Cu00b9H-magnetic%20resonance%20%28MR%29%20imaging%20and%20%5Cu00b3%5Cu00b9P-MR%20spectroscopy%20during%20maximal%20repeated%20isometric%20contractions%20induced%20by%20transcutaneous%20electrostimulation.%20In%20Mstn-%5C%2F-%20animals%2C%20although%20body%20weight%2C%20gastrocnemius%20muscle%20volume%2C%20and%20absolute%20force%20were%20larger%20%28%2B38%2C%20%2B118%2C%20and%20%2B34%25%2C%20respectively%29%20compared%20with%20wild-type%20%28Mstn%2B%5C%2F%2B%29%20mice%2C%20specific%20force%20%28calculated%20from%20MR%20imaging%20measurements%29%20was%20significantly%20lower%20%28-36%25%29%2C%20and%20resistance%20to%20fatigue%20was%20decreased.%20Besides%2C%20Mstn%20deficiency%20did%20not%20affect%20phosphorylated%20compound%20concentrations%20and%20intracellular%20pH%20at%20rest%20but%20caused%20a%20large%20increase%20in%20ATP%20cost%20of%20contraction%20%28up%20to%20%2B206%25%20compared%20with%20Mstn%2B%5C%2F%2B%29%20throughout%20the%20stimulation%20period.%20Further%2C%20Mstn%20deficiency%20limits%20the%20shift%20toward%20oxidative%20metabolism%20during%20muscle%20activity%20despite%20the%20fact%20that%20oxidative%20ATP%20synthesis%20capacity%20was%20not%20altered.%20Our%20data%20demonstrate%20in%20vivo%20that%20the%20absence%20of%20Mstn%20impairs%20both%20mechanical%20performance%20and%20energy%20cost%20of%20contraction%20in%20hypertrophic%20muscle.%20These%20findings%20must%20be%20kept%20in%20mind%20when%20considering%20Mstn%20as%20a%20potential%20therapeutic%20target%20for%20increasing%20muscle%20mass%20in%20patients%20suffering%20from%20muscle-wasting%20disorders.%22%2C%22date%22%3A%22Jul%201%2C%202013%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1152%5C%2Fajpendo.00651.2012%22%2C%22ISSN%22%3A%221522-1555%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%227FK4UDH9%22%2C%225Z6CVJGB%22%2C%22NW6SZQBR%22%2C%226DHTGFMA%22%5D%2C%22dateModified%22%3A%222013-11-18T17%3A53%3A41Z%22%7D%7D%2C%7B%22key%22%3A%2222556CDF%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1495222%2C%22username%22%3A%22crmbmlab%22%2C%22name%22%3A%22crmbmlab%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fcrmbmlab%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Gineste%20et%20al.%22%2C%22parsedDate%22%3A%222013-04%22%2C%22numChildren%22%3A8%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BGineste%2C%20C.%2C%20De%20Winter%2C%20J.M.%2C%20Kohl%2C%20C.%2C%20Witt%2C%20C.C.%2C%20Giannesini%2C%20B.%2C%20Brohm%2C%20K.%2C%20Le%20Fur%2C%20Y.%2C%20Gretz%2C%20N.%2C%20Vilmen%2C%20C.%2C%20Pecchi%2C%20E.%2C%20Jubeau%2C%20M.%2C%20Cozzone%2C%20P.J.%2C%20Stienen%2C%20G.J.M.%2C%20Granzier%2C%20H.%2C%20Labeit%2C%20S.%2C%20Ottenheijm%2C%20C.A.C.%2C%20Bendahan%2C%20D.%20and%20Gondin%2C%20J.%20%282013%29%20%26%23x201C%3BIn%20vivo%20and%20in%20vitro%20investigations%20of%20heterozygous%20nebulin%20knock-out%20mice%20disclose%20a%20mild%20skeletal%20muscle%20phenotype%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BNeuromuscular%20disorders%3A%20NMD%26lt%3B%5C%2Fi%26gt%3B%2C%2023%284%29%2C%20pp.%20357%26%23x2013%3B369.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.nmd.2012.12.011%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.nmd.2012.12.011%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22In%20vivo%20and%20in%20vitro%20investigations%20of%20heterozygous%20nebulin%20knock-out%20mice%20disclose%20a%20mild%20skeletal%20muscle%20phenotype%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22C%22%2C%22lastName%22%3A%22Gineste%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22J%20M%22%2C%22lastName%22%3A%22De%20Winter%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22C%22%2C%22lastName%22%3A%22Kohl%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22C%20C%22%2C%22lastName%22%3A%22Witt%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22B%22%2C%22lastName%22%3A%22Giannesini%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22K%22%2C%22lastName%22%3A%22Brohm%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Y%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22N%22%2C%22lastName%22%3A%22Gretz%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22C%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22E%22%2C%22lastName%22%3A%22Pecchi%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22M%22%2C%22lastName%22%3A%22Jubeau%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22P%20J%22%2C%22lastName%22%3A%22Cozzone%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22G%20J%20M%22%2C%22lastName%22%3A%22Stienen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22H%22%2C%22lastName%22%3A%22Granzier%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22S%22%2C%22lastName%22%3A%22Labeit%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22C%20A%20C%22%2C%22lastName%22%3A%22Ottenheijm%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22D%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22J%22%2C%22lastName%22%3A%22Gondin%22%7D%5D%2C%22abstractNote%22%3A%22Nemaline%20myopathy%20is%20the%20most%20common%20congenital%20skeletal%20muscle%20disease%2C%20and%20mutations%20in%20the%20nebulin%20gene%20account%20for%2050%25%20of%20all%20cases.%20Recent%20studies%20suggest%20that%20the%20disease%20severity%20might%20be%20related%20to%20the%20nebulin%20expression%20levels.%20Considering%20that%20mutations%20in%20the%20nebulin%20gene%20are%20typically%20recessive%2C%20one%20would%20expect%20that%20a%20single%20functional%20nebulin%20allele%20would%20maintain%20nebulin%20protein%20expression%20which%20would%20result%20in%20preserved%20skeletal%20muscle%20function.%20We%20investigated%20skeletal%20muscle%20function%20of%20heterozygous%20nebulin%20knock-out%20%28i.e.%2C%20nebulin%28%2B%5C%2F-%29%29%20mice%20using%20a%20multidisciplinary%20approach%20including%20protein%20and%20gene%20expression%20analysis%20and%20combined%20in%20vivo%20and%20in%20vitro%20force%20measurements.%20Skeletal%20muscle%20anatomy%20and%20energy%20metabolism%20were%20studied%20strictly%20non-invasively%20using%20magnetic%20resonance%20imaging%20and%2031P-magnetic%20resonance%20spectroscopy.%20Maximal%20force%20production%20was%20reduced%20by%20around%2016%25%20in%20isolated%20muscle%20of%20nebulin%28%2B%5C%2F-%29%20mice%20while%20in%20vivo%20force%20generating%20capacity%20was%20preserved.%20Muscle%20weakness%20was%20associated%20with%20a%20shift%20toward%20a%20slower%20proteomic%20phenotype%2C%20but%20was%20not%20related%20to%20nebulin%20protein%20deficiency%20or%20to%20an%20impaired%20energy%20metabolism.%20Further%20studies%20would%20be%20warranted%20in%20order%20to%20determine%20the%20mechanisms%20leading%20to%20a%20mild%20skeletal%20muscle%20phenotype%20resulting%20from%20the%20expression%20of%20a%20single%20nebulin%20allele.%22%2C%22date%22%3A%22Apr%202013%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1016%5C%2Fj.nmd.2012.12.011%22%2C%22ISSN%22%3A%221873-2364%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%226XQENTHJ%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%224ZGX55W3%22%2C%226DHTGFMA%22%2C%228MP7SHDW%22%5D%2C%22dateModified%22%3A%222013-12-17T09%3A34%3A00Z%22%7D%7D%2C%7B%22key%22%3A%22DNR3Q5EI%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1495222%2C%22username%22%3A%22crmbmlab%22%2C%22name%22%3A%22crmbmlab%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fcrmbmlab%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Gineste%20et%20al.%22%2C%22parsedDate%22%3A%222013%22%2C%22numChildren%22%3A8%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BGineste%2C%20C.%2C%20Le%20Fur%2C%20Y.%2C%20Vilmen%2C%20C.%2C%20Le%20Troter%2C%20A.%2C%20Pecchi%2C%20E.%2C%20Cozzone%2C%20P.J.%2C%20Hardeman%2C%20E.C.%2C%20Bendahan%2C%20D.%20and%20Gondin%2C%20J.%20%282013%29%20%26%23x201C%3BCombined%20MRI%20and%20%2831%29P-MRS%20Investigations%20of%20the%20ACTA1%28H40Y%29%20Mouse%20Model%20of%20Nemaline%20Myopathy%20Show%20Impaired%20Muscle%20Function%20and%20Altered%20Energy%20Metabolism%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BPloS%20one%26lt%3B%5C%2Fi%26gt%3B%2C%208%284%29%2C%20p.%20e61517.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1371%5C%2Fjournal.pone.0061517%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1371%5C%2Fjournal.pone.0061517%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Combined%20MRI%20and%20%2831%29P-MRS%20Investigations%20of%20the%20ACTA1%28H40Y%29%20Mouse%20Model%20of%20Nemaline%20Myopathy%20Show%20Impaired%20Muscle%20Function%20and%20Altered%20Energy%20Metabolism%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Charlotte%22%2C%22lastName%22%3A%22Gineste%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Arnaud%22%2C%22lastName%22%3A%22Le%20Troter%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Emilie%22%2C%22lastName%22%3A%22Pecchi%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Patrick%20J%22%2C%22lastName%22%3A%22Cozzone%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Edna%20C%22%2C%22lastName%22%3A%22Hardeman%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julien%22%2C%22lastName%22%3A%22Gondin%22%7D%5D%2C%22abstractNote%22%3A%22Nemaline%20myopathy%20%28NM%29%20is%20the%20most%20common%20disease%20entity%20among%20non-dystrophic%20skeletal%20muscle%20congenital%20diseases.%20Mutations%20in%20the%20skeletal%20muscle%20%5Cu03b1-actin%20gene%20%28ACTA1%29%20account%20for%20%5Cu223c25%25%20of%20all%20NM%20cases%20and%20are%20the%20most%20frequent%20cause%20of%20severe%20forms%20of%20NM.%20So%20far%2C%20the%20mechanisms%20underlying%20muscle%20weakness%20in%20NM%20patients%20remain%20unclear.%20Additionally%2C%20recent%20Magnetic%20Resonance%20Imaging%20%28MRI%29%20studies%20reported%20a%20progressive%20fatty%20infiltration%20of%20skeletal%20muscle%20with%20a%20specific%20muscle%20involvement%20in%20patients%20with%20ACTA1%20mutations.%20We%20investigated%20strictly%20noninvasively%20the%20gastrocnemius%20muscle%20function%20of%20a%20mouse%20model%20carrying%20a%20mutation%20in%20the%20ACTA1%20gene%20%28H40Y%29.%20Skeletal%20muscle%20anatomy%20%28hindlimb%20muscles%20and%20fat%20volumes%29%20and%20energy%20metabolism%20were%20studied%20using%20MRI%20and%20%2831%29Phosphorus%20magnetic%20resonance%20spectroscopy.%20Skeletal%20muscle%20contractile%20performance%20was%20investigated%20while%20applying%20a%20force-frequency%20protocol%20%28from%201-150%20Hz%29%20and%20a%20fatigue%20protocol%20%2880%20stimuli%20at%2040%20Hz%29.%20H40Y%20mice%20showed%20a%20reduction%20of%20both%20absolute%20%28-40%25%29%20and%20specific%20%28-25%25%29%20maximal%20force%20production%20as%20compared%20to%20controls.%20Interestingly%2C%20muscle%20weakness%20was%20associated%20with%20an%20improved%20resistance%20to%20fatigue%20%28%2B40%25%29%20and%20an%20increased%20energy%20cost.%20On%20the%20contrary%2C%20the%20force%20frequency%20relationship%20was%20not%20modified%20in%20H40Y%20mice%20and%20the%20extent%20of%20fatty%20infiltration%20was%20minor%20and%20not%20different%20from%20the%20WT%20group.%20We%20concluded%20that%20the%20H40Y%20mouse%20model%20does%20not%20reproduce%20human%20MRI%20findings%20but%20shows%20a%20severe%20muscle%20weakness%20which%20might%20be%20related%20to%20an%20alteration%20of%20intrinsic%20muscular%20properties.%20The%20increased%20energy%20cost%20in%20H40Y%20mice%20might%20be%20related%20to%20either%20an%20impaired%20mitochondrial%20function%20or%20an%20alteration%20at%20the%20cross-bridges%20level.%20Overall%2C%20we%20provided%20a%20unique%20set%20of%20anatomic%2C%20metabolic%20and%20functional%20biomarkers%20that%20might%20be%20relevant%20for%20monitoring%20the%20progression%20of%20NM%20disease%20but%20also%20for%20assessing%20the%20efficacy%20of%20potential%20therapeutic%20interventions%20at%20a%20preclinical%20level.%22%2C%22date%22%3A%222013%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1371%5C%2Fjournal.pone.0061517%22%2C%22ISSN%22%3A%221932-6203%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%226XQENTHJ%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%224ZGX55W3%22%2C%228MP7SHDW%22%2C%225P5FWCR9%22%5D%2C%22dateModified%22%3A%222013-11-22T11%3A12%3A41Z%22%7D%7D%2C%7B%22key%22%3A%22QA7KIJET%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1495222%2C%22username%22%3A%22crmbmlab%22%2C%22name%22%3A%22crmbmlab%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fcrmbmlab%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Gineste%20et%20al.%22%2C%22parsedDate%22%3A%222013%22%2C%22numChildren%22%3A6%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BGineste%2C%20C.%2C%20Duhamel%2C%20G.%2C%20Le%20Fur%2C%20Y.%2C%20Vilmen%2C%20C.%2C%20Cozzone%2C%20P.J.%2C%20Nowak%2C%20K.J.%2C%20Bendahan%2C%20D.%20and%20Gondin%2C%20J.%20%282013%29%20%26%23x201C%3BMultimodal%20MRI%20and%20%2831%29P-MRS%20Investigations%20of%20the%20ACTA1%28Asp286Gly%29%20Mouse%20Model%20of%20Nemaline%20Myopathy%20Provide%20Evidence%20of%20Impaired%20In%20Vivo%20Muscle%20Function%2C%20Altered%20Muscle%20Structure%20and%20Disturbed%20Energy%20Metabolism%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BPloS%20one%26lt%3B%5C%2Fi%26gt%3B%2C%208%288%29%2C%20p.%20e72294.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1371%5C%2Fjournal.pone.0072294%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1371%5C%2Fjournal.pone.0072294%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Multimodal%20MRI%20and%20%2831%29P-MRS%20Investigations%20of%20the%20ACTA1%28Asp286Gly%29%20Mouse%20Model%20of%20Nemaline%20Myopathy%20Provide%20Evidence%20of%20Impaired%20In%20Vivo%20Muscle%20Function%2C%20Altered%20Muscle%20Structure%20and%20Disturbed%20Energy%20Metabolism%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Charlotte%22%2C%22lastName%22%3A%22Gineste%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Guillaume%22%2C%22lastName%22%3A%22Duhamel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Patrick%20J%22%2C%22lastName%22%3A%22Cozzone%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Kristen%20J%22%2C%22lastName%22%3A%22Nowak%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julien%22%2C%22lastName%22%3A%22Gondin%22%7D%5D%2C%22abstractNote%22%3A%22Nemaline%20myopathy%20%28NM%29%2C%20the%20most%20common%20non-dystrophic%20congenital%20disease%20of%20skeletal%20muscle%2C%20can%20be%20caused%20by%20mutations%20in%20the%20skeletal%20muscle%20%5Cu03b1-actin%20gene%20%28ACTA1%29%20%28~25%25%20of%20all%20NM%20cases%20and%20up%20to%2050%25%20of%20severe%20forms%20of%20NM%29.%20Muscle%20function%20of%20the%20recently%20generated%20transgenic%20mouse%20model%20carrying%20the%20human%20Asp286Gly%20mutation%20in%20the%20ACTA1%20gene%20%28Tg%28ACTA1%29%28Asp286Gly%29%29%20has%20been%20mainly%20investigated%20in%20vitro.%20Therefore%2C%20we%20aimed%20at%20providing%20a%20comprehensive%20picture%20of%20the%20in%20vivo%20hindlimb%20muscle%20function%20of%20Tg%28ACTA1%29%28Asp286Gly%29%20mice%20by%20combining%20strictly%20noninvasive%20investigations.%20Skeletal%20muscle%20anatomy%20%28hindlimb%20muscles%2C%20intramuscular%20fat%20volumes%29%20and%20microstructure%20were%20studied%20using%20multimodal%20magnetic%20resonance%20imaging%20%28Dixon%2C%20T2%2C%20Diffusion%20Tensor%20Imaging%20%5BDTI%5D%29.%20Energy%20metabolism%20was%20studied%20using%2031-phosphorus%20Magnetic%20Resonance%20Spectroscopy%20%28%2831%29P-MRS%29.%20Skeletal%20muscle%20contractile%20performance%20was%20investigated%20while%20applying%20a%20force-frequency%20protocol%20%281-150%20Hz%29%20and%20a%20fatigue%20protocol%20%286%20min-1.7%20Hz%29.%20Tg%28ACTA1%29%28Asp286Gly%29%20mice%20showed%20a%20mild%20muscle%20weakness%20as%20illustrated%20by%20the%20reduction%20of%20both%20absolute%20%2830%25%29%20and%20specific%20%2815%25%29%20maximal%20force%20production.%20Dixon%20MRI%20did%20not%20show%20discernable%20fatty%20infiltration%20in%20Tg%28ACTA1%29%28Asp286Gly%29%20mice%20indicating%20that%20this%20mouse%20model%20does%20not%20reproduce%20human%20MRI%20findings.%20Increased%20T2%20values%20were%20observed%20in%20Tg%28ACTA1%29%28Asp286Gly%29%20mice%20and%20might%20reflect%20the%20occurrence%20of%20muscle%20degeneration%5C%2Fregeneration%20process.%20Interestingly%2C%20T2%20values%20were%20linearly%20related%20to%20muscle%20weakness.%20DTI%20experiments%20indicated%20lower%20%5Cu03bb2%20and%20%5Cu03bb3%20values%20in%20Tg%28ACTA1%29%28Asp286Gly%29%20mice%2C%20which%20might%20be%20associated%20to%20muscle%20atrophy%20and%5C%2For%20the%20presence%20of%20histological%20anomalies.%20Finally%20%2831%29P-MRS%20investigations%20illustrated%20an%20increased%20anaerobic%20energy%20cost%20of%20contraction%20in%20Tg%28ACTA1%29%28Asp286Gly%29%20mice%2C%20which%20might%20be%20ascribed%20to%20contractile%20and%20non-contractile%20processes.%20Overall%2C%20we%20provide%20a%20unique%20set%20of%20information%20about%20the%20anatomic%2C%20metabolic%20and%20functional%20consequences%20of%20the%20Asp286Gly%20mutation%20that%20might%20be%20considered%20as%20relevant%20biomarkers%20for%20monitoring%20the%20severity%20and%5C%2For%20the%20progression%20of%20NM%20and%20for%20assessing%20the%20efficacy%20of%20potential%20therapeutic%20interventions.%22%2C%22date%22%3A%222013%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1371%5C%2Fjournal.pone.0072294%22%2C%22ISSN%22%3A%221932-6203%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%224U7D3E9U%22%2C%22SVI8UJ6H%22%2C%226XQENTHJ%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%224ZGX55W3%22%2C%228MP7SHDW%22%5D%2C%22dateModified%22%3A%222014-09-17T18%3A47%3A05Z%22%7D%7D%2C%7B%22key%22%3A%22UP53UXQH%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1497928%2C%22username%22%3A%22fkober%22%2C%22name%22%3A%22Frank%20Kober%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Ffkober%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Layec%20et%20al.%22%2C%22parsedDate%22%3A%222012-08%22%2C%22numChildren%22%3A4%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BLayec%2C%20G.%2C%20Bringard%2C%20A.%2C%20Yashiro%2C%20K.%2C%20Le%20Fur%2C%20Y.%2C%20Vilmen%2C%20C.%2C%20Micallef%2C%20J.-P.%2C%20Perrey%2C%20S.%2C%20Cozzone%2C%20P.J.%20and%20Bendahan%2C%20D.%20%282012%29%20%26%23x201C%3BThe%20slow%20components%20of%20phosphocreatine%20and%20pulmonary%20oxygen%20uptake%20can%20be%20dissociated%20during%20heavy%20exercise%20according%20to%20training%20status%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BExperimental%20physiology%26lt%3B%5C%2Fi%26gt%3B%2C%2097%288%29%2C%20pp.%20955%26%23x2013%3B969.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1113%5C%2Fexpphysiol.2011.062927%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1113%5C%2Fexpphysiol.2011.062927%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22The%20slow%20components%20of%20phosphocreatine%20and%20pulmonary%20oxygen%20uptake%20can%20be%20dissociated%20during%20heavy%20exercise%20according%20to%20training%20status%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Gwenael%22%2C%22lastName%22%3A%22Layec%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Aur%5Cu00e9lien%22%2C%22lastName%22%3A%22Bringard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Kazuya%22%2C%22lastName%22%3A%22Yashiro%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jean-Paul%22%2C%22lastName%22%3A%22Micallef%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22St%5Cu00e9phane%22%2C%22lastName%22%3A%22Perrey%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Patrick%20J%22%2C%22lastName%22%3A%22Cozzone%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%5D%2C%22abstractNote%22%3A%22To%20better%20understand%20the%20mechanisms%20underlying%20the%20pulmonary%20O%282%29%20uptake%20%28V%28O%282P%29%29%29%20slow%20component%20during%20high-intensity%20exercise%2C%20we%20used%20%2831%29P%20magnetic%20resonance%20spectroscopy%2C%20gas%20exchange%2C%20surface%20electromyography%20and%20near-infrared%20spectroscopy%20measurements%20to%20examine%20the%20potential%20relationship%20between%20the%20slow%20components%20of%20V%28O%282P%29%29%20and%20phosphocreatine%20%28PCr%29%2C%20muscle%20recruitment%20and%20tissue%20oxygenation%20in%20endurance-trained%20athletes%20and%20sedentary%20subjects.%20Specifically%2C%20six%20endurance-trained%20and%20seven%20sedentary%20subjects%20performed%20a%20dynamic%20high-intensity%20exercise%20protocol%20during%206%20min%20at%20an%20exercise%20intensity%20corresponding%20to%2035-40%25%20of%20knee-extensor%20maximal%20voluntary%20contraction.%20The%20slow%20component%20of%20V%28O%282P%29%29%28117%20%5Cu00b1%2060%20ml%20min%28-1%29%2C%20i.e.%2020%20%5Cu00b1%2010%25%20of%20the%20total%20response%29%20was%20associated%20with%20a%20paradoxical%20PCr%20resynthesis%20in%20endurance-trained%20athletes%20%28-0.90%20%5Cu00b1%201.27%20mm%2C%20i.e.%20-12%20%5Cu00b1%2016%25%20of%20the%20total%20response%29.%20Meanwhile%2C%20oxygenated%20haemoglobin%20increased%20throughout%20the%20second%20part%20of%20exercise%20and%20was%20significantly%20higher%20at%20the%20end%20of%20exercise%20compared%20with%20the%20value%20at%20120%20s%20%28P%20%26lt%3B%200.05%29%2C%20whereas%20the%20integrated%20EMG%20was%20not%20significantly%20changed%20throughout%20exercise.%20In%20sedentary%20subjects%2C%20a%20slow%20component%20was%20simultaneously%20observed%20for%20V%28O%282P%29%29%20and%20%5BPCr%5D%20time-dependent%20changes%20%28208%20%5Cu00b1%2014%20ml%20min%28-1%29%2C%20i.e.%2038%20%5Cu00b1%2018%25%20of%20the%20total%20V%28O%282P%29%29response%2C%20and%201.82%20%5Cu00b1%201.39%20mm%2C%20i.e.%2016%20%5Cu00b1%2013%25%20of%20the%20total%20%5BPCr%5D%20response%29%2C%20but%20the%20corresponding%20absolute%20or%20relative%20amplitudes%20were%20not%20correlated.%20The%20integrated%20EMG%20was%20significantly%20increased%20throughout%20exercise%20in%20sedentary%20subjects.%20Taken%20together%2C%20our%20results%20challenge%20the%20hypothesis%20of%20a%20mechanistic%20link%20between%20%5BPCr%5D%20and%20V%28O%282P%29%29%20slow%20components%20and%20demonstrate%20that%2C%20as%20a%20result%20of%20a%20tighter%20metabolic%20control%20and%20increased%20O%282%29%20availability%2C%20the%20%5BPCr%5D%20slow%20component%20can%20be%20minimized%20in%20endurance-trained%20athletes%20while%20the%20V%28O%282P%29%29%20slow%20component%20occurs.%22%2C%22date%22%3A%22Aug%202012%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1113%5C%2Fexpphysiol.2011.062927%22%2C%22ISSN%22%3A%221469-445X%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%224ZGX55W3%22%5D%2C%22dateModified%22%3A%222024-07-04T07%3A45%3A23Z%22%7D%7D%2C%7B%22key%22%3A%22AMQVKMND%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1497928%2C%22username%22%3A%22fkober%22%2C%22name%22%3A%22Frank%20Kober%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Ffkober%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Chiche%20et%20al.%22%2C%22parsedDate%22%3A%222012-04-01%22%2C%22numChildren%22%3A3%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BChiche%2C%20J.%2C%20Le%20Fur%2C%20Y.%2C%20Vilmen%2C%20C.%2C%20Frassineti%2C%20F.%2C%20Daniel%2C%20L.%2C%20Halestrap%2C%20A.P.%2C%20Cozzone%2C%20P.J.%2C%20Pouyss%26%23xE9%3Bgur%2C%20J.%20and%20Lutz%2C%20N.W.%20%282012%29%20%26%23x201C%3BIn%20vivo%20pH%20in%20metabolic-defective%20Ras-transformed%20fibroblast%20tumors%3A%20key%20role%20of%20the%20monocarboxylate%20transporter%2C%20MCT4%2C%20for%20inducing%20an%20alkaline%20intracellular%20pH%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BInternational%20journal%20of%20cancer.%20Journal%20international%20du%20cancer%26lt%3B%5C%2Fi%26gt%3B%2C%20130%287%29%2C%20pp.%201511%26%23x2013%3B1520.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1002%5C%2Fijc.26125%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1002%5C%2Fijc.26125%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22In%20vivo%20pH%20in%20metabolic-defective%20Ras-transformed%20fibroblast%20tumors%3A%20key%20role%20of%20the%20monocarboxylate%20transporter%2C%20MCT4%2C%20for%20inducing%20an%20alkaline%20intracellular%20pH%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Johanna%22%2C%22lastName%22%3A%22Chiche%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Fr%5Cu00e9d%5Cu00e9ric%22%2C%22lastName%22%3A%22Frassineti%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Laurent%22%2C%22lastName%22%3A%22Daniel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Andrew%20P%22%2C%22lastName%22%3A%22Halestrap%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Patrick%20J%22%2C%22lastName%22%3A%22Cozzone%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jacques%22%2C%22lastName%22%3A%22Pouyss%5Cu00e9gur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Norbert%20W%22%2C%22lastName%22%3A%22Lutz%22%7D%5D%2C%22abstractNote%22%3A%22We%20present%20an%20investigation%20of%20tumor%20pH%20regulation%2C%20designed%20to%20support%20a%20new%20anticancer%20therapy%20concept%20that%20we%20had%20previously%20proposed.%20Our%20study%20uses%20a%20tumor%20model%20of%20ras-transformed%20hamster%20fibroblasts%2C%20CCL39%2C%20xenografted%20in%20the%20thighs%20of%20nude%20mice.%20We%20demonstrate%2C%20for%20the%20first%20time%2C%20that%20genetic%20modifications%20of%20specific%20mechanisms%20of%20proton%20production%20and%5C%2For%20proton%20transport%20result%20in%20distinct%2C%20reproducible%20changes%20in%20intracellular%20and%20extracellular%20tumor%20pH%20that%20can%20be%20detected%20and%20quantified%20noninvasively%20in%20vivo%2C%20simultaneously%20with%20determinations%20of%20tumor%20energetic%20status%20and%20necrosis%20in%20the%20same%20experiment.%20The%20CCL39%20variants%20used%20were%20deficient%20in%20the%20sodium%5C%2Fproton%20exchanger%2C%20NHE-1%2C%20and%5C%2For%20in%20the%20monocarboxylate%20transporter%2C%20MCT4%3B%20further%2C%20variants%20were%20deficient%20in%20glycolysis%20or%20respiration.%20MCT4%20expression%20markedly%20increased%20the%20gradient%20between%20intracellular%20and%20extracellular%20pH%20from%200.14%20to%200.43%20when%20compared%20to%20CCL39%20wild-type%20tumors%20not%20expressing%20MCT4.%20The%20other%20genetic%20modifications%20studied%20produced%20smaller%20but%20significant%20increases%20in%20intracellular%20and%20decreases%20in%20extracellular%20pH.%20In%20general%2C%20increased%20pH%20gradients%20were%20paralleled%20by%20increased%20tumor%20growth%20performance%20and%20diminished%20necrotic%20regions%2C%20and%2050%25%20of%20the%20CCL39%20variant%20expressing%20neither%20MCT4%20nor%20NHE-1%2C%20but%20possessing%20full%20genetic%20capacity%20for%20glycolysis%20and%20oxidative%20phosphorylation%2C%20underwent%20regression%20before%20reaching%20a%201-cm%20diameter.%20Except%20for%20CCL39%20wild-type%20tumors%2C%20no%20significant%20HIF-1%5Cu03b1%20expression%20was%20detected.%20Our%20in%20vivo%20results%20support%20a%20multipronged%20approach%20to%20tumor%20treatment%20based%20on%20minimizing%20intracellular%20pH%20by%20targeting%20several%20proton%20production%20and%20proton%20transport%20processes%2C%20among%20which%20the%20very%20efficient%20MCT4%20proton%5C%2Flactate%20co-transport%20deserves%20particular%20attention.%22%2C%22date%22%3A%22Apr%201%2C%202012%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1002%5C%2Fijc.26125%22%2C%22ISSN%22%3A%221097-0215%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%227FK4UDH9%22%2C%224ZGX55W3%22%2C%22DMWSM5YR%22%5D%2C%22dateModified%22%3A%222024-11-06T10%3A43%3A29Z%22%7D%7D%2C%7B%22key%22%3A%22SBKWWK9E%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1495222%2C%22username%22%3A%22crmbmlab%22%2C%22name%22%3A%22crmbmlab%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fcrmbmlab%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Gondin%20et%20al.%22%2C%22parsedDate%22%3A%222011-06%22%2C%22numChildren%22%3A7%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BGondin%2C%20J.%2C%20Giannesini%2C%20B.%2C%20Vilmen%2C%20C.%2C%20Le%20Fur%2C%20Y.%2C%20Cozzone%2C%20P.J.%20and%20Bendahan%2C%20D.%20%282011%29%20%26%23x201C%3BEffects%20of%20a%20single%20bout%20of%20isometric%20neuromuscular%20electrical%20stimulation%20on%20rat%20gastrocnemius%20muscle%3A%20a%20combined%20functional%2C%20biochemical%20and%20MRI%20investigation%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BJournal%20of%20electromyography%20and%20kinesiology%3A%20official%20journal%20of%20the%20International%20Society%20of%20Electrophysiological%20Kinesiology%26lt%3B%5C%2Fi%26gt%3B%2C%2021%283%29%2C%20pp.%20525%26%23x2013%3B532.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.jelekin.2011.01.006%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1016%5C%2Fj.jelekin.2011.01.006%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Effects%20of%20a%20single%20bout%20of%20isometric%20neuromuscular%20electrical%20stimulation%20on%20rat%20gastrocnemius%20muscle%3A%20a%20combined%20functional%2C%20biochemical%20and%20MRI%20investigation%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julien%22%2C%22lastName%22%3A%22Gondin%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Beno%5Cu00eet%22%2C%22lastName%22%3A%22Giannesini%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Patrick%20J%22%2C%22lastName%22%3A%22Cozzone%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%5D%2C%22abstractNote%22%3A%22While%20muscle%20damage%20resulting%20from%20electrically-induced%20muscle%20isometric%20contractions%20has%20been%20reported%20in%20humans%2C%20animal%20studies%20have%20failed%20to%20illustrate%20similar%20deleterious%20effects%20and%20it%20remains%20to%20be%20determined%20whether%20these%20conflicting%20results%20are%20related%20to%20differences%20regarding%20experimental%20procedures%20or%20to%20species.%20We%20have%20investigated%20in%20vivo%2C%20in%20rat%20gastrocnemius%20muscles%2C%20using%20experimental%20conditions%20as%20close%20as%20possible%20to%20those%20used%20in%20humans%20%28i.e.%2C%20muscle%20length%2C%20number%20of%20contractions%2C%20stimulated%20muscle%29%2C%20the%20effects%20of%20a%20single%20bout%20of%20neuromuscular%20electrical%20stimulation%20%28NMES%29.%20Maximal%20tetanic%20force%20was%20measured%20before%2C%20immediately%20after%20and%201h%20and%201%2C%202%2C%203%2C%207%20and%2014%20days%20after%20NMES.%20Magnetic%20resonance%20imaging%20measurements%2C%20including%20volume%20of%20gastrocnemius%20muscles%20and%20proton%20transverse%20relaxation%20time%20%28T%282%29%29%20were%20performed%20at%20baseline%20and%203%2C%207%2C%20and%2014%20days%20after%20the%20NMES%20session.%20Control%20animals%20did%20not%20perform%20any%20exercise%20and%20measurements%20were%20recorded%20at%20the%20same%20time%20points.%20For%20both%20groups%2C%20blood%20creatine%20kinase%20%28CK%29%20activity%20was%20measured%20within%20the%20first%203%20days%20that%20followed%20the%20initial%20evaluation.%20Maximal%20tetanic%20force%20decreased%20immediately%20after%20NMES%20whereas%20measurements%20performed%201h%20and%20the%20days%20afterwards%20were%20similar%20to%20the%20baseline%20values.%20CK%20activity%2C%20muscle%20volume%20and%20T%282%29%20values%20were%20similar%20throughout%20the%20experimental%20protocol%20between%20the%20two%20groups.%20Under%20carefully%20controlled%20experimental%20conditions%2C%20isometric%20NMES%20per%20se%20did%20not%20induce%20muscle%20damage%20in%20rat%20gastrocnemius%20muscles%20on%20the%20contrary%20to%20what%20has%20been%20repeatedly%20reported%20in%20humans.%20Further%20experiments%20would%20then%20be%20warranted%20in%20order%20to%20clearly%20delineate%20these%20differences%20and%20to%20better%20understand%20the%20physiological%20events%20associated%20with%20muscle%20damage%20resulting%20from%20NMES-induced%20isometric%20contractions.%22%2C%22date%22%3A%22Jun%202011%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1016%5C%2Fj.jelekin.2011.01.006%22%2C%22ISSN%22%3A%221873-5711%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%226XQENTHJ%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%224ZGX55W3%22%2C%226DHTGFMA%22%5D%2C%22dateModified%22%3A%222013-11-22T11%3A12%3A08Z%22%7D%7D%2C%7B%22key%22%3A%22UN7Q7CIW%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1495222%2C%22username%22%3A%22crmbmlab%22%2C%22name%22%3A%22crmbmlab%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fcrmbmlab%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Layec%20et%20al.%22%2C%22parsedDate%22%3A%222011-05%22%2C%22numChildren%22%3A4%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BLayec%2C%20G.%2C%20Bringard%2C%20A.%2C%20Le%20Fur%2C%20Y.%2C%20Vilmen%2C%20C.%2C%20Micallef%2C%20J.-P.%2C%20Perrey%2C%20S.%2C%20Cozzone%2C%20P.J.%20and%20Bendahan%2C%20D.%20%282011%29%20%26%23x201C%3BComparative%20determination%20of%20energy%20production%20rates%20and%20mitochondrial%20function%20using%20different%2031P%20MRS%20quantitative%20methods%20in%20sedentary%20and%20trained%20subjects%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BNMR%20in%20biomedicine%26lt%3B%5C%2Fi%26gt%3B%2C%2024%284%29%2C%20pp.%20425%26%23x2013%3B438.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1002%5C%2Fnbm.1607%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1002%5C%2Fnbm.1607%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Comparative%20determination%20of%20energy%20production%20rates%20and%20mitochondrial%20function%20using%20different%2031P%20MRS%20quantitative%20methods%20in%20sedentary%20and%20trained%20subjects%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Gwenael%22%2C%22lastName%22%3A%22Layec%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Aur%5Cu00e9lien%22%2C%22lastName%22%3A%22Bringard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jean-Paul%22%2C%22lastName%22%3A%22Micallef%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22St%5Cu00e9phane%22%2C%22lastName%22%3A%22Perrey%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Patrick%20J%22%2C%22lastName%22%3A%22Cozzone%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%5D%2C%22abstractNote%22%3A%22Muscle%20energetics%20has%20been%20largely%20and%20quantitatively%20investigated%20using%20%2831%29P%20MRS.%20Various%20methods%20have%20been%20used%20to%20estimate%20the%20corresponding%20rate%20of%20oxidative%20ATP%20synthesis%20%28ATP%28ox%29%29%3B%20however%2C%20potential%20differences%20among%20methods%20have%20not%20been%20investigated.%20In%20this%20study%2C%20we%20aimed%20to%20compare%20the%20rates%20of%20ATP%20production%20and%20energy%20cost%20in%20two%20groups%20of%20subjects%20with%20different%20training%20status%20using%20four%20different%20methods%3A%20indirect%20method%20%28method%201%29%2C%20ADP%20control%20model%20%28method%202%29%20and%20phosphate%20potential%20control%20model%20%28method%203%29.%20Method%204%20was%20a%20modified%20version%20of%20method%203%20with%20the%20introduction%20of%20a%20correction%20factor%20allowing%20for%20similar%20values%20to%20be%20obtained%20for%20the%20end-exercise%20oxidative%20ATP%20synthesis%20rate%20inferred%20from%20exercise%20measurements%20and%20the%20initial%20recovery%20phosphocreatine%20resynthesis%20rate.%20Seven%20sedentary%20and%20seven%20endurance-trained%20subjects%20performed%20a%20dynamic%20standardised%20rest-exercise-recovery%20protocol.%20We%20quantified%20the%20rates%20of%20ATP%28ox%29%20and%20anaerobic%20ATP%20synthesis%20%28ATP%28ana%29%29%20using%20%2831%29P%20MRS%20data%20recorded%20at%201.5%20T.%20The%20rates%20of%20ATP%28ox%29%20over%20the%20entire%20exercise%20session%20were%20independent%20of%20the%20method%20used%2C%20except%20for%20method%204%20which%20provided%20significantly%20higher%20values%20in%20both%20groups%20%28p%20%26lt%3B%200.01%29.%20In%20addition%2C%20methods%201-3%20were%20cross-correlated%2C%20thereby%20confirming%20their%20statistical%20agreement.%20The%20rate%20of%20ATP%28ana%29%20was%20significantly%20higher%20with%20method%201%20%28p%20%26lt%3B%200.01%29%20and%20lower%20with%20method%204%20%28p%20%26lt%3B%200.01%29.%20As%20a%20result%20of%20the%20higher%20rate%20of%20ATP%28ox%29%2C%20EC%20%28method%204%29%20calculated%20over%20the%20entire%20exercise%20session%20was%20higher%20and%20initial%20EC%20%28method%201%29%20was%20lower%20in%20both%20groups%20compared%20with%20the%20other%20methods.%20We%20showed%20in%20this%20study%20that%20the%20rate%20of%20ATP%28ox%29%20was%20independent%20of%20the%20calculation%20method%2C%20as%20long%20as%20no%20corrections%20%28method%204%29%20were%20performed.%20In%20contrast%2C%20results%20related%20to%20the%20rates%20of%20ATP%28ana%29%20were%20strongly%20affected%20by%20the%20calculation%20method%20and%2C%20more%20exactly%2C%20by%20the%20estimation%20of%20protons%20generated%20by%20ATP%28ox%29.%20Although%20the%20absolute%20EC%20values%20differed%20between%20the%20methods%2C%20within-%20or%20between-subject%20comparisons%20are%20still%20valid%20given%20the%20tight%20relationships%20between%20them.%22%2C%22date%22%3A%22May%202011%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1002%5C%2Fnbm.1607%22%2C%22ISSN%22%3A%221099-1492%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%224ZGX55W3%22%5D%2C%22dateModified%22%3A%222013-11-22T11%3A12%3A06Z%22%7D%7D%2C%7B%22key%22%3A%22DPMCT2N9%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1495222%2C%22username%22%3A%22crmbmlab%22%2C%22name%22%3A%22crmbmlab%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fcrmbmlab%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Tonson%20et%20al.%22%2C%22parsedDate%22%3A%222010-12%22%2C%22numChildren%22%3A4%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BTonson%2C%20A.%2C%20Ratel%2C%20S.%2C%20Le%20Fur%2C%20Y.%2C%20Vilmen%2C%20C.%2C%20Cozzone%2C%20P.J.%20and%20Bendahan%2C%20D.%20%282010%29%20%26%23x201C%3BMuscle%20energetics%20changes%20throughout%20maturation%3A%20a%20quantitative%2031P-MRS%20analysis%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BJournal%20of%20applied%20physiology%20%28Bethesda%2C%20Md.%3A%201985%29%26lt%3B%5C%2Fi%26gt%3B%2C%20109%286%29%2C%20pp.%201769%26%23x2013%3B1778.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1152%5C%2Fjapplphysiol.01423.2009%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1152%5C%2Fjapplphysiol.01423.2009%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Muscle%20energetics%20changes%20throughout%20maturation%3A%20a%20quantitative%2031P-MRS%20analysis%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Anne%22%2C%22lastName%22%3A%22Tonson%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22S%5Cu00e9bastien%22%2C%22lastName%22%3A%22Ratel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Patrick%20J%22%2C%22lastName%22%3A%22Cozzone%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%5D%2C%22abstractNote%22%3A%22We%20quantified%20energy%20production%20in%207%20prepubescent%20boys%20%2811.7%20%5Cu00b1%200.6%20yr%29%20and%2010%20men%20%2835.6%20%5Cu00b1%207.8%20yr%29%20using%20%2831%29P-magnetic%20resonance%20spectroscopy%20to%20investigate%20whether%20development%20affects%20muscle%20energetics%2C%20given%20that%20resistance%20to%20fatigue%20has%20been%20reported%20to%20be%20larger%20before%20puberty.%20Each%20subject%20performed%20a%20finger%20flexions%20exercise%20at%200.7%20Hz%20against%20a%20weight%20adjusted%20to%2015%25%20of%20their%20maximal%20voluntary%20strength%20for%203%20min%2C%20followed%20by%20a%2015-min%20recovery%20period.%20The%20total%20energy%20cost%20was%20similar%20in%20both%20groups%20throughout%20the%20exercise%20bout%2C%20whereas%20the%20interplay%20of%20the%20different%20metabolic%20pathways%20was%20different.%20At%20the%20onset%20of%20exercise%2C%20children%20exhibited%20a%20higher%20oxidative%20contribution%20%2850%20%5Cu00b1%2015%25%20in%20boys%20and%2025%20%5Cu00b1%208%25%20in%20men%2C%20P%20%26lt%3B%200.05%29%20to%20ATP%20production%2C%20whereas%20the%20phosphocreatine%20breakdown%20contribution%20was%20reduced%20%2840%20%5Cu00b1%2010%25%20in%20boys%20and%2053%20%5Cu00b1%2012%25%20in%20men%2C%20P%20%26lt%3B%200.05%29%2C%20likely%20as%20a%20compensatory%20mechanism.%20The%20anaerobic%20glycolysis%20activity%20was%20unaffected%20by%20maturation.%20The%20recovery%20phase%20also%20disclosed%20differences%20regarding%20the%20rates%20of%20proton%20efflux%20%286.2%20%5Cu00b1%202.5%20vs.%203.8%20%5Cu00b1%201.9%20mM%20%5Cu00b7%20pH%20unit%28-1%29%20%5Cu00b7%20min%28-1%29%2C%20in%20boys%20and%20men%2C%20respectively%2C%20P%20%26lt%3B%200.05%29%2C%20and%20phosphocreatine%20recovery%2C%20which%20was%20significantly%20faster%20in%20boys%20than%20in%20men%20%28rate%20constant%20of%20phosphocreatine%20recovery%3A%201.3%20%5Cu00b1%200.5%20vs.%200.7%20%5Cu00b1%200.4%20min%28-1%29%3B%20V%28max%29%3A%2037.5%20%5Cu00b1%2014.5%20vs.%2021.1%20%5Cu00b1%2012.2%20mM%5C%2Fmin%2C%20in%20boys%20and%20men%2C%20respectively%2C%20P%20%26lt%3B%200.05%29.%20Our%20results%20obtained%20in%20vivo%20clearly%20showed%20that%20maturation%20affects%20muscle%20energetics.%20Children%20relied%20more%20on%20oxidative%20metabolism%20and%20less%20on%20creatine%20kinase%20reaction%20to%20meet%20energy%20demand%20during%20exercise.%20This%20phenomenon%20can%20be%20explained%20by%20a%20greater%20oxidative%20capacity%2C%20probably%20linked%20to%20a%20higher%20relative%20content%20in%20slow-twitch%20fibers%20before%20puberty.%22%2C%22date%22%3A%22Dec%202010%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1152%5C%2Fjapplphysiol.01423.2009%22%2C%22ISSN%22%3A%221522-1601%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%224ZGX55W3%22%5D%2C%22dateModified%22%3A%222013-11-22T11%3A12%3A00Z%22%7D%7D%2C%7B%22key%22%3A%226KVICMUX%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1495222%2C%22username%22%3A%22crmbmlab%22%2C%22name%22%3A%22crmbmlab%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fcrmbmlab%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Giannesini%20et%20al.%22%2C%22parsedDate%22%3A%222010-07%22%2C%22numChildren%22%3A4%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BGiannesini%2C%20B.%2C%20Vilmen%2C%20C.%2C%20Le%20Fur%2C%20Y.%2C%20Dalmasso%2C%20C.%2C%20Cozzone%2C%20P.J.%20and%20Bendahan%2C%20D.%20%282010%29%20%26%23x201C%3BA%20strictly%20noninvasive%20MR%20setup%20dedicated%20to%20longitudinal%20studies%20of%20mechanical%20performance%2C%20bioenergetics%2C%20anatomy%2C%20and%20muscle%20recruitment%20in%20contracting%20mouse%20skeletal%20muscle%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BMagnetic%20resonance%20in%20medicine%3A%20official%20journal%20of%20the%20Society%20of%20Magnetic%20Resonance%20in%20Medicine%20%5C%2F%20Society%20of%20Magnetic%20Resonance%20in%20Medicine%26lt%3B%5C%2Fi%26gt%3B%2C%2064%281%29%2C%20pp.%20262%26%23x2013%3B270.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1002%5C%2Fmrm.22386%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1002%5C%2Fmrm.22386%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22A%20strictly%20noninvasive%20MR%20setup%20dedicated%20to%20longitudinal%20studies%20of%20mechanical%20performance%2C%20bioenergetics%2C%20anatomy%2C%20and%20muscle%20recruitment%20in%20contracting%20mouse%20skeletal%20muscle%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Beno%5Cu00eet%22%2C%22lastName%22%3A%22Giannesini%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christiane%22%2C%22lastName%22%3A%22Dalmasso%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Patrick%20J%22%2C%22lastName%22%3A%22Cozzone%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%5D%2C%22abstractNote%22%3A%22MR%20techniques%20have%20proven%20their%20ability%20to%20investigate%20skeletal%20muscle%20function%20in%20situ.%20Their%20benefit%20in%20terms%20of%20noninvasiveness%20is%2C%20however%2C%20lost%20in%20animal%20research%2C%20given%20that%20muscle%20stimulation%20and%20force%20output%20measurements%20are%20usually%20achieved%20using%20invasive%20surgical%20procedures%2C%20thereby%20excluding%20repeated%20investigations%20in%20the%20same%20animal.%20This%20study%20describes%20a%20new%20setup%20allowing%20strictly%20noninvasive%20investigations%20of%20mouse%20gastrocnemius%20muscle%20function%20using%20%281%29H-MRI%20and%20%2831%29P-MR%20spectroscopy.%20Its%20originality%20is%20to%20integrate%20noninvasive%20systems%20for%20inducing%20muscle%20contraction%20through%20transcutaneous%20stimulation%20and%20for%20measuring%20mechanical%20performance%20with%20a%20dedicated%20ergometer.%20In%20order%20to%20test%20the%20setup%2C%20muscle%20function%20was%20investigated%20using%20a%20fatiguing%20stimulation%20protocol%20%286%20min%20of%20repeated%20isometric%20contractions%20at%201.7%20Hz%29.%20T%282%29-weighted%20imaging%20demonstrated%20that%20transcutaneous%20stimulation%20mainly%20activated%20the%20gastrocnemius.%20Moreover%2C%20investigations%20repeated%20twice%20with%20a%207-day%20interval%20between%20bouts%20did%20show%20a%20high%20reproducibility%20in%20measurements%20with%20regard%20to%20changes%20in%20isometric%20force%20and%20energy%20metabolism.%20In%20conclusion%2C%20this%20setup%20enables%20us%20for%20the%20first%20time%20to%20access%20mechanical%20performance%2C%20energy%20metabolism%2C%20anatomy%2C%20and%20physiology%20strictly%20noninvasively%20in%20contracting%20mouse%20skeletal%20muscle.%20The%20possibility%20for%20implementing%20longitudinal%20studies%20opens%20up%20new%20perspectives%20in%20many%20research%20areas%2C%20including%20ageing%2C%20pharmaceutical%20research%2C%20and%20gene%20and%20cell%20therapy.%22%2C%22date%22%3A%22Jul%202010%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1002%5C%2Fmrm.22386%22%2C%22ISSN%22%3A%221522-2594%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%224ZGX55W3%22%2C%226DHTGFMA%22%5D%2C%22dateModified%22%3A%222013-11-22T11%3A11%3A53Z%22%7D%7D%2C%7B%22key%22%3A%22F6F5WRAS%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1495222%2C%22username%22%3A%22crmbmlab%22%2C%22name%22%3A%22crmbmlab%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fcrmbmlab%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Gondin%20et%20al.%22%2C%22parsedDate%22%3A%222010-05%22%2C%22numChildren%22%3A7%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BGondin%2C%20J.%2C%20Giannesini%2C%20B.%2C%20Vilmen%2C%20C.%2C%20Dalmasso%2C%20C.%2C%20le%20Fur%2C%20Y.%2C%20Cozzone%2C%20P.J.%20and%20Bendahan%2C%20D.%20%282010%29%20%26%23x201C%3BEffects%20of%20stimulation%20frequency%20and%20pulse%20duration%20on%20fatigue%20and%20metabolic%20cost%20during%20a%20single%20bout%20of%20neuromuscular%20electrical%20stimulation%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BMuscle%20%26amp%3B%20nerve%26lt%3B%5C%2Fi%26gt%3B%2C%2041%285%29%2C%20pp.%20667%26%23x2013%3B678.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1002%5C%2Fmus.21572%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1002%5C%2Fmus.21572%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Effects%20of%20stimulation%20frequency%20and%20pulse%20duration%20on%20fatigue%20and%20metabolic%20cost%20during%20a%20single%20bout%20of%20neuromuscular%20electrical%20stimulation%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julien%22%2C%22lastName%22%3A%22Gondin%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Beno%5Cu00eet%22%2C%22lastName%22%3A%22Giannesini%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christiane%22%2C%22lastName%22%3A%22Dalmasso%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Patrick%20J%22%2C%22lastName%22%3A%22Cozzone%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%5D%2C%22abstractNote%22%3A%22We%20have%20investigated%20the%20effects%20of%20stimulation%20frequency%20and%20pulse%20duration%20on%20fatigue%20and%20energy%20metabolism%20in%20rat%20gastrocnemius%20muscle%20during%20a%20single%20bout%20of%20neuromuscular%20electrical%20stimulation%20%28NMES%29.%20Electrical%20pulses%20were%20delivered%20at%20100%20Hz%20%281-ms%20pulse%20duration%29%20and%2020%20Hz%20%285-ms%20pulse%20duration%29%20for%20the%20high%20%28HF%29%20and%20low%20%28LF%29%20frequency%20protocols%2C%20respectively.%20As%20a%20standardization%20procedure%2C%20the%20averaged%20stimulation%20intensity%2C%20the%20averaged%20total%20charge%2C%20the%20initial%20peak%20torque%2C%20the%20duty%20cycle%2C%20the%20contraction%20duration%20and%20the%20torque-time%20integral%20were%20similar%20in%20both%20protocols.%20Fatigue%20was%20assessed%20using%20two%20testing%20trains%20delivered%20at%20a%20frequency%20of%20100%20Hz%20and%2020%20Hz%20before%20and%20after%20each%20protocol.%20Metabolic%20changes%20were%20investigated%20in%20vivo%20using%2031P-magnetic%20resonance%20spectroscopy%20%2831P-MRS%29%20and%20in%20vitro%20in%20freeze-clamped%20muscles.%20Both%20LF%20and%20HF%20NMES%20protocols%20induced%20the%20same%20decrease%20in%20testing%20trains%20and%20metabolic%20changes.%20We%20conclude%20that%2C%20under%20carefully%20controlled%20and%20comparable%20conditions%2C%20the%20use%20of%20low%20stimulation%20frequency%20and%20long%20pulse%20duration%20do%20not%20minimize%20the%20occurrence%20of%20muscle%20fatigue%20or%20affect%20the%20corresponding%20stimulation-induced%20metabolic%20changes%20so%20that%20this%20combination%20of%20stimulation%20parameters%20would%20not%20be%20adequate%20in%20the%20context%20of%20rehabilitation.%22%2C%22date%22%3A%22May%202010%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1002%5C%2Fmus.21572%22%2C%22ISSN%22%3A%221097-4598%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%226XQENTHJ%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%224ZGX55W3%22%2C%226DHTGFMA%22%5D%2C%22dateModified%22%3A%222013-11-22T11%3A11%3A50Z%22%7D%7D%2C%7B%22key%22%3A%2254C6C22C%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1495222%2C%22username%22%3A%22crmbmlab%22%2C%22name%22%3A%22crmbmlab%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fcrmbmlab%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Layec%20et%20al.%22%2C%22parsedDate%22%3A%222009-10%22%2C%22numChildren%22%3A5%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BLayec%2C%20G.%2C%20Bringard%2C%20A.%2C%20Le%20Fur%2C%20Y.%2C%20Vilmen%2C%20C.%2C%20Micallef%2C%20J.-P.%2C%20Perrey%2C%20S.%2C%20Cozzone%2C%20P.J.%20and%20Bendahan%2C%20D.%20%282009%29%20%26%23x201C%3BReproducibility%20assessment%20of%20metabolic%20variables%20characterizing%20muscle%20energetics%20in%20vivo%3A%20A%2031P-MRS%20study%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BMagnetic%20resonance%20in%20medicine%3A%20official%20journal%20of%20the%20Society%20of%20Magnetic%20Resonance%20in%20Medicine%20%5C%2F%20Society%20of%20Magnetic%20Resonance%20in%20Medicine%26lt%3B%5C%2Fi%26gt%3B%2C%2062%284%29%2C%20pp.%20840%26%23x2013%3B854.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1002%5C%2Fmrm.22085%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1002%5C%2Fmrm.22085%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Reproducibility%20assessment%20of%20metabolic%20variables%20characterizing%20muscle%20energetics%20in%20vivo%3A%20A%2031P-MRS%20study%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Gwenael%22%2C%22lastName%22%3A%22Layec%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Aur%5Cu00e9lien%22%2C%22lastName%22%3A%22Bringard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jean-Paul%22%2C%22lastName%22%3A%22Micallef%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22St%5Cu00e9phane%22%2C%22lastName%22%3A%22Perrey%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Patrick%20J%22%2C%22lastName%22%3A%22Cozzone%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%5D%2C%22abstractNote%22%3A%22The%20purpose%20of%20the%20present%20study%20was%20to%20assess%20the%20reliability%20of%20metabolic%20parameters%20measured%20using%20%2831%29P%20magnetic%20resonance%20spectroscopy%20%28%2831%29P%20MRS%29%20during%20two%20standardized%20rest-exercise-recovery%20protocols.%20Twelve%20healthy%20subjects%20performed%20the%20standardized%20protocols%20at%20two%20different%20intensities%3B%20i.e.%2C%20a%20moderate%20intensity%20%28MOD%29%20repeated%20over%20a%20two-month%20period%20and%20heavy%20intensity%20%28HEAVY%29%20repeated%20over%20a%20year%26%23039%3Bs%20time.%20Test-retest%20reliability%20was%20analyzed%20using%20coefficient%20of%20variation%20%28CV%29%2C%20limits%20of%20agreement%20%28LOA%29%2C%20and%20intraclass%20correlation%20coefficients%20%28ICC%29.%20During%20exercise%20and%20recovery%20periods%2C%20most%20of%20the%20metabolic%20parameters%20exhibited%20a%20good%20reliability.%20The%20CVs%20of%20individual%20concentration%20of%20phosphocreatine%20%28%5BPCr%5D%29%2C%20concentration%20of%20adenosine%20diphosphate%20%28%5BADP%5D%29%2C%20and%20pH%20values%20recorded%20at%20end%20of%20the%20HEAVY%20exercise%20were%20lower%20than%2015%25.%20The%20CV%20calculated%20for%20the%20rate%20of%20PCr%20resynthesis%20and%20the%20maximal%20oxidative%20capacity%20were%20less%20than%2013%25%20during%20the%20HEAVY%20protocol.%20Inferred%20parameters%20such%20as%20oxidative%20and%20total%20adenosine%20triphosphate%20%28ATP%29%20production%20rates%20exhibited%20a%20good%20reliability%20%28ICC%20approximately%200.7%3B%20CV%20%26lt%3B%2015%25%20during%20the%20HEAVY%20protocol%29.%20Our%20results%20demonstrated%20that%20measurement%20error%20using%20%2831%29P-MRS%20during%20a%20standardized%20exercise%20was%20low%20and%20that%20biological%20variability%20accounted%20for%20the%20vast%20majority%20of%20the%20measurement%20variability.%20In%20addition%2C%20the%20corresponding%20metabolic%20measurements%20can%20reliably%20be%20used%20for%20longitudinal%20studies%20performed%20even%20over%20a%20long%20period%20of%20time.%22%2C%22date%22%3A%22Oct%202009%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1002%5C%2Fmrm.22085%22%2C%22ISSN%22%3A%221522-2594%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%224ZGX55W3%22%5D%2C%22dateModified%22%3A%222013-11-22T11%3A11%3A47Z%22%7D%7D%2C%7B%22key%22%3A%22JJGN38ET%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1495222%2C%22username%22%3A%22crmbmlab%22%2C%22name%22%3A%22crmbmlab%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fcrmbmlab%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Layec%20et%20al.%22%2C%22parsedDate%22%3A%222009-06%22%2C%22numChildren%22%3A5%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BLayec%2C%20G.%2C%20Bringard%2C%20A.%2C%20Le%20Fur%2C%20Y.%2C%20Vilmen%2C%20C.%2C%20Micallef%2C%20J.-P.%2C%20Perrey%2C%20S.%2C%20Cozzone%2C%20P.J.%20and%20Bendahan%2C%20D.%20%282009%29%20%26%23x201C%3BEffects%20of%20a%20prior%20high-intensity%20knee-extension%20exercise%20on%20muscle%20recruitment%20and%20energy%20cost%3A%20a%20combined%20local%20and%20global%20investigation%20in%20humans%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BExperimental%20physiology%26lt%3B%5C%2Fi%26gt%3B%2C%2094%286%29%2C%20pp.%20704%26%23x2013%3B719.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1113%5C%2Fexpphysiol.2008.044651%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1113%5C%2Fexpphysiol.2008.044651%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Effects%20of%20a%20prior%20high-intensity%20knee-extension%20exercise%20on%20muscle%20recruitment%20and%20energy%20cost%3A%20a%20combined%20local%20and%20global%20investigation%20in%20humans%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Gwenael%22%2C%22lastName%22%3A%22Layec%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Aur%5Cu00e9lien%22%2C%22lastName%22%3A%22Bringard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jean-Paul%22%2C%22lastName%22%3A%22Micallef%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22St%5Cu00e9phane%22%2C%22lastName%22%3A%22Perrey%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Patrick%20J%22%2C%22lastName%22%3A%22Cozzone%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%5D%2C%22abstractNote%22%3A%22The%20effects%20of%20a%20priming%20exercise%20bout%20on%20both%20muscle%20energy%20production%20and%20the%20pattern%20of%20muscle%20fibre%20recruitment%20during%20a%20subsequent%20exercise%20bout%20are%20poorly%20understood.%20The%20purpose%20of%20the%20present%20study%20was%20to%20determine%20whether%20a%20prior%20exercise%20bout%20which%20is%20known%20to%20increase%20O%282%29%20supply%20and%20to%20induce%20a%20residual%20acidosis%20could%20alter%20energy%20cost%20and%20muscle%20fibre%20recruitment%20during%20a%20subsequent%20heavy-intensity%20knee-extension%20exercise.%20Fifteen%20healthy%20subjects%20performed%20two%206%20min%20bouts%20of%20heavy%20exercise%20separated%20by%20a%206%20min%20resting%20period.%20Rates%20of%20oxidative%20and%20anaerobic%20ATP%20production%2C%20determined%20with%20%2831%29P-magnetic%20resonance%20spectroscopy%2C%20and%20breath-by-breath%20measurements%20of%20pulmonary%20oxygen%20uptake%20were%20obtained%20simultaneously.%20Changes%20in%20muscle%20oxygenation%20and%20muscle%20fibre%20recruitment%20occurring%20within%20the%20quadriceps%20were%20measured%20using%20near-infrared%20spectroscopy%20and%20surface%20electromyography.%20The%20priming%20heavy-intensity%20exercise%20increased%20motor%20unit%20recruitment%20%28P%20%26lt%3B%200.05%29%20in%20the%20early%20part%20of%20the%20subsequent%20exercise%20bout%20but%20did%20not%20alter%20muscle%20energy%20cost.%20We%20also%20observed%20a%20reduced%20deoxygenation%20time%20delay%2C%20whereas%20the%20deoxygenation%20amplitude%20was%20increased%20%28P%20%26lt%3B%200.01%29.%20These%20changes%20were%20associated%20with%20an%20increased%20oxidative%20ATP%20cost%20after%20approximately%2050%20s%20%28P%20%26lt%3B%200.05%29%20and%20a%20slight%20reduction%20in%20the%20overall%20anaerobic%20rate%20of%20ATP%20production%20%280.11%20%2B%5C%2F-%200.04%20mM%20min%28-1%29%20W%28-1%29%20for%20bout%201%20and%200.06%20%2B%5C%2F-%200.11%20mM%20min%28-1%29%20W%28-1%29%20for%20bout%202%3B%20P%20%26lt%3B%200.05%29.%20We%20showed%20that%20a%20priming%20bout%20of%20heavy%20exercise%20led%20to%20an%20increased%20recruitment%20of%20motor%20units%20in%20the%20early%20part%20of%20the%20second%20bout%20of%20heavy%20exercise.%20Considering%20the%20increased%20oxidative%20cost%20and%20the%20unaltered%20energy%20cost%2C%20one%20could%20suggest%20that%20our%20results%20illustrate%20a%20reduced%20metabolic%20strain%20per%20fibre.%22%2C%22date%22%3A%22Jun%202009%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1113%5C%2Fexpphysiol.2008.044651%22%2C%22ISSN%22%3A%221469-445X%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%224ZGX55W3%22%5D%2C%22dateModified%22%3A%222013-11-22T11%3A11%3A44Z%22%7D%7D%2C%7B%22key%22%3A%22PXRZQW6A%22%2C%22library%22%3A%7B%22id%22%3A180164%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A1495222%2C%22username%22%3A%22crmbmlab%22%2C%22name%22%3A%22crmbmlab%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fcrmbmlab%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Layec%20et%20al.%22%2C%22parsedDate%22%3A%222009-05%22%2C%22numChildren%22%3A5%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%201.35%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BLayec%2C%20G.%2C%20Bringard%2C%20A.%2C%20Vilmen%2C%20C.%2C%20Micallef%2C%20J.-P.%2C%20Le%20Fur%2C%20Y.%2C%20Perrey%2C%20S.%2C%20Cozzone%2C%20P.J.%20and%20Bendahan%2C%20D.%20%282009%29%20%26%23x201C%3BDoes%20oxidative%20capacity%20affect%20energy%20cost%3F%20An%20in%20vivo%20MR%20investigation%20of%20skeletal%20muscle%20energetics%2C%26%23x201D%3B%20%26lt%3Bi%26gt%3BEuropean%20journal%20of%20applied%20physiology%26lt%3B%5C%2Fi%26gt%3B%2C%20106%282%29%2C%20pp.%20229%26%23x2013%3B242.%20Available%20at%3A%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1007%5C%2Fs00421-009-1012-y%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1007%5C%2Fs00421-009-1012-y%26lt%3B%5C%2Fa%26gt%3B.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Does%20oxidative%20capacity%20affect%20energy%20cost%3F%20An%20in%20vivo%20MR%20investigation%20of%20skeletal%20muscle%20energetics%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Gwenael%22%2C%22lastName%22%3A%22Layec%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Aur%5Cu00e9lien%22%2C%22lastName%22%3A%22Bringard%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Christophe%22%2C%22lastName%22%3A%22Vilmen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jean-Paul%22%2C%22lastName%22%3A%22Micallef%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yann%22%2C%22lastName%22%3A%22Le%20Fur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22St%5Cu00e9phane%22%2C%22lastName%22%3A%22Perrey%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Patrick%20J%22%2C%22lastName%22%3A%22Cozzone%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Bendahan%22%7D%5D%2C%22abstractNote%22%3A%22Investigations%20of%20training%20effects%20on%20exercise%20energy%20cost%20have%20yielded%20conflicting%20results.%20The%20purpose%20of%20the%20present%20study%20was%20to%20compare%20quadriceps%20energy%20cost%20and%20oxidative%20capacity%20between%20endurance-trained%20and%20sedentary%20subjects%20during%20a%20heavy%20dynamic%20knee%20extension%20exercise.%20We%20quantified%20the%20rates%20of%20ATP%20turnover%20from%20oxidative%20and%20anaerobic%20pathways%20with%20%2831%29P-MRS%2C%20and%20we%20measured%20simultaneously%20pulmonary%20oxygen%20uptake%20in%20order%20to%20assess%20both%20total%20ATP%20production%20%5Bi.e.%2C%20energy%20cost%20%28EC%29%5D%20and%20O%282%29%20consumption%20%28O%282%29%20cost%29%20scaled%20to%20power%20output.%20Seven%20sedentary%20%28SED%29%20and%20seven%20endurance-trained%20%28TRA%29%20subjects%20performed%20a%20dynamic%20standardized%20rest-exercise-recovery%20protocol%20at%20an%20exercise%20intensity%20corresponding%20to%2035%25%20of%20maximal%20voluntary%20contraction.%20We%20showed%20that%20during%20a%20dynamic%20heavy%20exercise%2C%20the%20O%282%29%20cost%20and%20EC%20were%20similar%20in%20the%20SED%20and%20endurance-trained%20groups.%20For%20a%20given%20EC%2C%20endurance-trained%20subjects%20exhibited%20a%20higher%20relative%20mitochondrial%20contribution%20to%20ATP%20production%20at%20the%20muscle%20level%20%2884%20%2B%5C%2F-%2012%25%20in%20TRA%20and%2057%20%2B%5C%2F-%2012%25%20in%20SED%3B%20P%20%26lt%3B%200.01%29%20whereas%20the%20anaerobic%20contribution%20was%20reduced%20%2818%20%2B%5C%2F-%2012%25%20in%20TRA%20and%2044%20%2B%5C%2F-%2011%25%20in%20SED%3B%20P%20%26lt%3B%200.01%29.%20Our%20results%20obtained%20in%20vivo%20illustrate%20that%20on%20the%20one%20hand%20the%20beneficial%20effects%20of%20endurance%20training%20are%20not%20related%20to%20any%20reduction%20in%20EC%20or%20O%282%29%20cost%20and%20on%20the%20other%20hand%20that%20this%20similar%20EC%20was%20linked%20to%20a%20change%20regarding%20the%20contribution%20of%20anaerobic%20and%20oxidative%20processes%20to%20energy%20production%2C%20i.e.%2C%20a%20greater%20aerobic%20energy%20contribution%20associated%20with%20a%20concomitant%20reduction%20of%20the%20anaerobic%20energy%20supply.%22%2C%22date%22%3A%22May%202009%22%2C%22language%22%3A%22eng%22%2C%22DOI%22%3A%2210.1007%5C%2Fs00421-009-1012-y%22%2C%22ISSN%22%3A%221439-6327%22%2C%22url%22%3A%22%22%2C%22collections%22%3A%5B%22SVI8UJ6H%22%2C%227FK4UDH9%22%2C%22NW6SZQBR%22%2C%224ZGX55W3%22%5D%2C%22dateModified%22%3A%222013-11-22T11%3A11%3A43Z%22%7D%7D%5D%7D
Tikhonenko, D., Rustomji, K., Vilmen, C., Durand, A., Nouari, G., Enoch, S., Bendahan, D., Abdeddaim, R. and Dubois, M. (2025) “Optimal excitation of single mode resonators: demonstration with a 3 T MRI metasolenoid,” Journal of Magnetic Resonance (San Diego, Calif.: 1997), 382, p. 107992. Available at: https://doi.org/10.1016/j.jmr.2025.107992.
Jouenne, A., Sourdon, J., Varlet, I., Vilmen, C., Kober, F., Landrier, J.F., Bernard, M. and Desrois, M. (2025) “Resveratrol protection against cardiac remodeling and ischemia-reperfusion injury associated with hepatic lipid metabolism ameliorations and adipose tissue autotaxin pathway inhibition in a diet induced prediabetic female rat model,” The Journal of Nutritional Biochemistry, p. 109992. Available at: https://doi.org/10.1016/j.jnutbio.2025.109992.
Michel, C.P., Messonnier, L.A., Giannesini, B., Vilmen, C., Sourdon, J., Le Fur, Y. and Bendahan, D. (2024) “Endurance training and hydroxyurea have synergistic effects on muscle function and energetics in sickle cell disease mice,” Blood Cells, Molecules & Diseases, 107, p. 102853. Available at: https://doi.org/10.1016/j.bcmd.2024.102853.
Michel, C.P., Bendahan, D., Giannesini, B., Vilmen, C., Le Fur, Y. and Messonnier, L.A. (2023) “Effects of hydroxyurea on skeletal muscle energetics and force production in a sickle cell disease murine model,” Journal of Applied Physiology, 134(2), pp. 415–425. Available at: https://doi.org/10.1152/japplphysiol.00333.2022.
Meimoun, L., Pecchi, É., Vilmen, C., Bendahan, D. and Giannesini, B. (2022) “Effect of citrulline malate supplementation on muscle function and bioenergetics during short-term repeated bouts of fatiguing exercise,” Journal of Sports Sciences, 40(17), pp. 1981–1990. Available at: https://doi.org/10.1080/02640414.2022.2123527.
Michel, C.P., Messonnier, L.A., Giannesini, B., Chatel, B., Vilmen, C., Le Fur, Y. and Bendahan, D. (2022) “Effects of Hydroxyurea on Skeletal Muscle Energetics and Function in a Mildly Anemic Mouse Model,” Frontiers in Physiology, 13, p. 915640. Available at: https://doi.org/10.3389/fphys.2022.915640.
Chatel, B., Bernit, E., Vilmen, C., Michel, C., Bendahan, D. and Messonnier, L.A. (2021) “In vivo muscle function and energetics in women with sickle cell anemia or trait: a 31P-magnetic resonance spectroscopy study,” Journal of Applied Physiology (Bethesda, Md.: 1985), 130(3), pp. 737–745. Available at: https://doi.org/10.1152/japplphysiol.00790.2020.
Hurshkainen, A., Dubois, M., Nikulin, A., Vilmen, C., Bendahan, D., Enoch, S., Glybovski, S. and Abdeddaim, R. (2020) “Radio Frequency Coil for Dual-Nuclei MR Muscle Energetics Investigation Based on Two Capacitively Coupled Periodic Wire Arrays,” IEEE Antennas and Wireless Propagation Letters, 19(5), pp. 721–725. Available at: https://doi.org/10.1109/LAWP.2019.2960610.
Chatel, B., Messonnier, L.A., Vilmen, C., Bernard, M., Pialoux, V. and Bendahan, D. (2019) “Ischaemia-induced muscle metabolic abnormalities are poorly alleviated by endurance training in a mouse model of sickle cell disease,” Experimental Physiology, 104(3), pp. 398–406. Available at: https://doi.org/10.1113/EP087430.
Béchir, N., Pecchi, É., Vilmen, C., Bernard, M., Bendahan, D. and Giannesini, B. (2018) “Activin type IIB receptor blockade does not limit adenosine triphosphate supply in mouse skeletal muscle in Vivo,” Muscle & Nerve, 58(6), pp. 834–842. Available at: https://doi.org/10.1002/mus.26306.
Chatel, B., Messonnier, L.A., Vilmen, C., Bernard, M., Pialoux, V. and Bendahan, D. (2018) “Exacerbated metabolic changes in skeletal muscle of sickle cell mice submitted to an acute ischemia-reperfusion paradigm,” Clinical Science (London, England: 1979), 132(19), pp. 2103–2115. Available at: https://doi.org/10.1042/CS20180268.
Messineo, A.M., Gineste, C., Sztal, T.E., McNamara, E.L., Vilmen, C., Ogier, A.C., Hahne, D., Bendahan, D., Laing, N.G., Bryson-Richardson, R.J., Gondin, J. and Nowak, K.J. (2018) “L-tyrosine supplementation does not ameliorate skeletal muscle dysfunction in zebrafish and mouse models of dominant skeletal muscle α-actin nemaline myopathy,” Scientific Reports, 8(1), p. 11490. Available at: https://doi.org/10.1038/s41598-018-29437-z.
Macia, M., Pecchi, E., Desrois, M., Lan, C., Vilmen, C., Portha, B., Bernard, M., Bendahan, D. and Giannesini, B. (2018) “Exercise training impacts exercise tolerance and bioenergetics in gastrocnemius muscle of non-obese type-2 diabetic Goto-Kakizaki rat in vivo,” Biochimie, 148, pp. 36–45. Available at: https://doi.org/10.1016/j.biochi.2018.02.014.
Chatel, B., Messonnier, L.A., Barge, Q., Vilmen, C., Noirez, P., Bernard, M., Pialoux, V. and Bendahan, D. (2018) “Endurance training reduces exercise-induced acidosis and improves muscle function in a mouse model of sickle cell disease,” Molecular Genetics and Metabolism, 123(3), pp. 400–410. Available at: https://doi.org/10.1016/j.ymgme.2017.11.010.
Fouré, A., Ogier, A.C., Le Troter, A., Vilmen, C., Feiweier, T., Guye, M., Gondin, J., Besson, P. and Bendahan, D. (2018) “Diffusion Properties and 3D Architecture of Human Lower Leg Muscles Assessed with Ultra-High-Field-Strength Diffusion-Tensor MR Imaging and Tractography: Reproducibility and Sensitivity to Sex Difference and Intramuscular Variability,” Radiology, 287(2), pp. 592–607. Available at: https://doi.org/10.1148/radiol.2017171330.
Wegrzyk, J., Ranjeva, J.-P., Fouré, A., Kavounoudias, A., Vilmen, C., Mattei, J.-P., Guye, M., Maffiuletti, N.A., Place, N., Bendahan, D. and Gondin, J. (2017) “Specific brain activation patterns associated with two neuromuscular electrical stimulation protocols,” Scientific Reports, 7(1), p. 2742. Available at: https://doi.org/10.1038/s41598-017-03188-9.
Chatel, B., Bendahan, D., Hourdé, C., Pellerin, L., Lengacher, S., Magistretti, P., Le Fur, Y., Vilmen, C., Bernard, M. and Messonnier, L.A. (2017) “Role of MCT1 and CAII in skeletal muscle pH homeostasis, energetics, and function: in vivo insights from MCT1 haploinsufficient mice,” FASEB journal: official publication of the Federation of American Societies for Experimental Biology, 31(6), pp. 2562–2575. Available at: https://doi.org/10.1096/fj.201601259R.
Chatel, B., Messonnier, L.A., Hourdé, C., Vilmen, C., Bernard, M. and Bendahan, D. (2017) “Moderate and intense muscular exercises induce marked intramyocellular metabolic acidosis in sickle cell disease mice,” Journal of Applied Physiology (Bethesda, Md.: 1985), 122(5), pp. 1362–1369. Available at: https://doi.org/10.1152/japplphysiol.01099.2016.
Fouré, A., Duhamel, G., Vilmen, C., Bendahan, D., Jubeau, M. and Gondin, J. (2017) “Fast measurement of the quadriceps femoris muscle transverse relaxation time at high magnetic field using segmented echo-planar imaging,” Journal of magnetic resonance imaging: JMRI, 45(2), pp. 356–368. Available at: https://doi.org/10.1002/jmri.25355.
Chatel, B., Hourdé, C., Gondin, J., Fouré, A., Le Fur, Y., Vilmen, C., Bernard, M., Messonnier, L.A. and Bendahan, D. (2017) “Impaired muscle force production and higher fatigability in a mouse model of sickle cell disease,” Blood Cells, Molecules & Diseases, 63, pp. 37–44. Available at: https://doi.org/10.1016/j.bcmd.2017.01.004.
Béchir, N., Pecchi, E., Vilmen, C., Le Fur, Y., Amthor, H., Bernard, M., Bendahan, D. and Giannesini, B. (2016) “ActRIIB blockade increases force-generating capacity and preserves energy supply in exercising mdx mouse muscle in vivo,” FASEB journal: official publication of the Federation of American Societies for Experimental Biology, 30(10), pp. 3551–3562. Available at: https://doi.org/10.1096/fj.201600271RR.
Martin, A., Grosprêtre, S., Vilmen, C., Guye, M., Mattei, J.-P., LE Fur, Y., Bendahan, D. and Gondin, J. (2016) “The Etiology of Muscle Fatigue Differs between Two Electrical Stimulation Protocols,” Medicine and Science in Sports and Exercise, 48(8), pp. 1474–1484. Available at: https://doi.org/10.1249/MSS.0000000000000930.
Layec, G., Bringard, A., LE Fur, Y., Micallef, J.-P., Vilmen, C., Perrey, S., Cozzone, P.J. and Bendahan, D. (2016) “Mitochondrial Coupling and Contractile Efficiency in Humans with High and Low V˙O2peaks,” Medicine and Science in Sports and Exercise, 48(5), pp. 811–821. Available at: https://doi.org/10.1249/MSS.0000000000000858.
Béchir, N., Pecchi, É., Relizani, K., Vilmen, C., Le Fur, Y., Bernard, M., Amthor, H., Bendahan, D. and Giannesini, B. (2016) “Mitochondrial impairment induced by postnatal ActRIIB blockade does not alter function and energy status in exercising mouse glycolytic muscle in vivo,” American Journal of Physiology. Endocrinology and Metabolism, 310(7), pp. E539-549. Available at: https://doi.org/10.1152/ajpendo.00370.2015.
Fouré, A., Nosaka, K., Gastaldi, M., Mattei, J.-P., Boudinet, H., Guye, M., Vilmen, C., Le Fur, Y., Bendahan, D. and Gondin, J. (2016) “Effects of branched-chain amino acids supplementation on both plasma amino acids concentration and muscle energetics changes resulting from muscle damage: A randomized placebo controlled trial,” Clinical Nutrition (Edinburgh, Scotland), 35(1), pp. 83–94. Available at: https://doi.org/10.1016/j.clnu.2015.03.014.
Wegrzyk, J., Foure, A., Vilmen, C., Ghattas, B., Maffiuletti, N.A., Mattei, J.-P., Place, N., Bendahan, D. and Gondin, J. (2015) “Extra Forces induced by wide-pulse, high-frequency electrical stimulation: Occurrence, magnitude, variability and underlying mechanisms,” Clinical Neurophysiology, 126(7), pp. 1400–1412. Available at: https://doi.org/10.1016/j.clinph.2014.10.001.
Fouré, A., Wegrzyk, J., LE Fur, Y., Mattei, J.-P., Boudinet, H., Vilmen, C., Bendahan, D. and Gondin, J. (2015) “Impaired mitochondrial function and reduced energy cost as a result of muscle damage,” Medicine and Science in Sports and Exercise, 47(6), pp. 1135–1144. Available at: https://doi.org/10.1249/MSS.0000000000000523.
Jubeau, M., LE Fur, Y., Duhamel, G., Wegrzyk, J., Confort-Gouny, S., Vilmen, C., Cozzone, P.J., Mattei, J.P., Bendahan, D. and Gondin, J. (2015) “Localized metabolic and t2 changes induced by voluntary and evoked contractions,” Medicine and Science in Sports and Exercise, 47(5), pp. 921–930. Available at: https://doi.org/10.1249/MSS.0000000000000491.
Layec, G., Bringard, A., Le Fur, Y., Micallef, J.-P., Vilmen, C., Perrey, S., Cozzone, P.J. and Bendahan, D. (2015) “Opposite effects of hyperoxia on mitochondrial and contractile efficiency in human quadriceps muscles,” American Journal of Physiology. Regulatory, Integrative and Comparative Physiology, 308(8), pp. R724-733. Available at: https://doi.org/10.1152/ajpregu.00461.2014.
Wegrzyk, J., Fouré, A., Le Fur, Y., Maffiuletti, N.A., Vilmen, C., Guye, M., Mattei, J.-P., Place, N., Bendahan, D. and Gondin, J. (2015) “Responders to Wide-Pulse, High-Frequency Neuromuscular Electrical Stimulation Show Reduced Metabolic Demand: A 31P-MRS Study in Humans,” PloS One, 10(11), p. e0143972. Available at: https://doi.org/10.1371/journal.pone.0143972.
Yashiro, K., Tonson, A., Pecchi, É., Vilmen, C., Le Fur, Y., Bernard, M., Bendahan, D. and Giannesini, B. (2015) “Capsiate Supplementation Reduces Oxidative Cost of Contraction in Exercising Mouse Skeletal Muscle In Vivo,” PloS One, 10(6), p. e0128016. Available at: https://doi.org/10.1371/journal.pone.0128016.
Macia, M., Pecchi, E., Vilmen, C., Desrois, M., Lan, C., Portha, B., Bernard, M., Bendahan, D. and Giannesini, B. (2015) “Insulin Resistance Is Not Associated with an Impaired Mitochondrial Function in Contracting Gastrocnemius Muscle of Goto-Kakizaki Diabetic Rats In Vivo,” PloS One, 10(6), p. e0129579. Available at: https://doi.org/10.1371/journal.pone.0129579.
Gondin, J., Vilmen, C., Cozzone, P.J., Bendahan, D. and Duhamel, G. (2014) “High-field (11.75T) multimodal MR imaging of exercising hindlimb mouse muscles using a non-invasive combined stimulation and force measurement device,” NMR in biomedicine, 27(8), pp. 870–879. Available at: https://doi.org/10.1002/nbm.3122.
Kazuya, Y., Tonson, A., Pecchi, E., Dalmasso, C., Vilmen, C., Fur, Y.L., Bernard, M., Bendahan, D. and Giannesini, B. (2014) “A single intake of capsiate improves mechanical performance and bioenergetics efficiency in contracting mouse skeletal muscle,” American Journal of Physiology. Endocrinology and Metabolism, 306(10), pp. E1110-1119. Available at: https://doi.org/10.1152/ajpendo.00520.2013.
Gineste, C., Ottenheijm, C., Le Fur, Y., Banzet, S., Pecchi, E., Vilmen, C., Cozzone, P.J., Koulmann, N., Hardeman, E.C., Bendahan, D. and Gondin, J. (2014) “Alterations at the cross-bridge level are associated with a paradoxical gain of muscle function in vivo in a mouse model of nemaline myopathy,” PloS One, 9(9), p. e109066. Available at: https://doi.org/10.1371/journal.pone.0109066.
Fouré, A., Nosaka, K., Wegrzyk, J., Duhamel, G., Le Troter, A., Boudinet, H., Mattei, J.-P., Vilmen, C., Jubeau, M., Bendahan, D. and Gondin, J. (2014) “Time course of central and peripheral alterations after isometric neuromuscular electrical stimulation-induced muscle damage,” PloS One, 9(9), p. e107298. Available at: https://doi.org/10.1371/journal.pone.0107298.
Giannesini, B., Vilmen, C., Amthor, H., Bernard, M. and Bendahan, D. (2013) “Lack of myostatin impairs mechanical performance and ATP cost of contraction in exercising mouse gastrocnemius muscle in vivo,” American journal of physiology. Endocrinology and metabolism, 305(1), pp. E33-40. Available at: https://doi.org/10.1152/ajpendo.00651.2012.
Gineste, C., De Winter, J.M., Kohl, C., Witt, C.C., Giannesini, B., Brohm, K., Le Fur, Y., Gretz, N., Vilmen, C., Pecchi, E., Jubeau, M., Cozzone, P.J., Stienen, G.J.M., Granzier, H., Labeit, S., Ottenheijm, C.A.C., Bendahan, D. and Gondin, J. (2013) “In vivo and in vitro investigations of heterozygous nebulin knock-out mice disclose a mild skeletal muscle phenotype,” Neuromuscular disorders: NMD, 23(4), pp. 357–369. Available at: https://doi.org/10.1016/j.nmd.2012.12.011.
Gineste, C., Le Fur, Y., Vilmen, C., Le Troter, A., Pecchi, E., Cozzone, P.J., Hardeman, E.C., Bendahan, D. and Gondin, J. (2013) “Combined MRI and (31)P-MRS Investigations of the ACTA1(H40Y) Mouse Model of Nemaline Myopathy Show Impaired Muscle Function and Altered Energy Metabolism,” PloS one, 8(4), p. e61517. Available at: https://doi.org/10.1371/journal.pone.0061517.
Gineste, C., Duhamel, G., Le Fur, Y., Vilmen, C., Cozzone, P.J., Nowak, K.J., Bendahan, D. and Gondin, J. (2013) “Multimodal MRI and (31)P-MRS Investigations of the ACTA1(Asp286Gly) Mouse Model of Nemaline Myopathy Provide Evidence of Impaired In Vivo Muscle Function, Altered Muscle Structure and Disturbed Energy Metabolism,” PloS one, 8(8), p. e72294. Available at: https://doi.org/10.1371/journal.pone.0072294.
Layec, G., Bringard, A., Yashiro, K., Le Fur, Y., Vilmen, C., Micallef, J.-P., Perrey, S., Cozzone, P.J. and Bendahan, D. (2012) “The slow components of phosphocreatine and pulmonary oxygen uptake can be dissociated during heavy exercise according to training status,” Experimental physiology, 97(8), pp. 955–969. Available at: https://doi.org/10.1113/expphysiol.2011.062927.
Chiche, J., Le Fur, Y., Vilmen, C., Frassineti, F., Daniel, L., Halestrap, A.P., Cozzone, P.J., Pouysségur, J. and Lutz, N.W. (2012) “In vivo pH in metabolic-defective Ras-transformed fibroblast tumors: key role of the monocarboxylate transporter, MCT4, for inducing an alkaline intracellular pH,” International journal of cancer. Journal international du cancer, 130(7), pp. 1511–1520. Available at: https://doi.org/10.1002/ijc.26125.
Gondin, J., Giannesini, B., Vilmen, C., Le Fur, Y., Cozzone, P.J. and Bendahan, D. (2011) “Effects of a single bout of isometric neuromuscular electrical stimulation on rat gastrocnemius muscle: a combined functional, biochemical and MRI investigation,” Journal of electromyography and kinesiology: official journal of the International Society of Electrophysiological Kinesiology, 21(3), pp. 525–532. Available at: https://doi.org/10.1016/j.jelekin.2011.01.006.
Layec, G., Bringard, A., Le Fur, Y., Vilmen, C., Micallef, J.-P., Perrey, S., Cozzone, P.J. and Bendahan, D. (2011) “Comparative determination of energy production rates and mitochondrial function using different 31P MRS quantitative methods in sedentary and trained subjects,” NMR in biomedicine, 24(4), pp. 425–438. Available at: https://doi.org/10.1002/nbm.1607.
Tonson, A., Ratel, S., Le Fur, Y., Vilmen, C., Cozzone, P.J. and Bendahan, D. (2010) “Muscle energetics changes throughout maturation: a quantitative 31P-MRS analysis,” Journal of applied physiology (Bethesda, Md.: 1985), 109(6), pp. 1769–1778. Available at: https://doi.org/10.1152/japplphysiol.01423.2009.
Giannesini, B., Vilmen, C., Le Fur, Y., Dalmasso, C., Cozzone, P.J. and Bendahan, D. (2010) “A strictly noninvasive MR setup dedicated to longitudinal studies of mechanical performance, bioenergetics, anatomy, and muscle recruitment in contracting mouse skeletal muscle,” Magnetic resonance in medicine: official journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine, 64(1), pp. 262–270. Available at: https://doi.org/10.1002/mrm.22386.
Gondin, J., Giannesini, B., Vilmen, C., Dalmasso, C., le Fur, Y., Cozzone, P.J. and Bendahan, D. (2010) “Effects of stimulation frequency and pulse duration on fatigue and metabolic cost during a single bout of neuromuscular electrical stimulation,” Muscle & nerve, 41(5), pp. 667–678. Available at: https://doi.org/10.1002/mus.21572.
Layec, G., Bringard, A., Le Fur, Y., Vilmen, C., Micallef, J.-P., Perrey, S., Cozzone, P.J. and Bendahan, D. (2009) “Reproducibility assessment of metabolic variables characterizing muscle energetics in vivo: A 31P-MRS study,” Magnetic resonance in medicine: official journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine, 62(4), pp. 840–854. Available at: https://doi.org/10.1002/mrm.22085.
Layec, G., Bringard, A., Le Fur, Y., Vilmen, C., Micallef, J.-P., Perrey, S., Cozzone, P.J. and Bendahan, D. (2009) “Effects of a prior high-intensity knee-extension exercise on muscle recruitment and energy cost: a combined local and global investigation in humans,” Experimental physiology, 94(6), pp. 704–719. Available at: https://doi.org/10.1113/expphysiol.2008.044651.
Layec, G., Bringard, A., Vilmen, C., Micallef, J.-P., Le Fur, Y., Perrey, S., Cozzone, P.J. and Bendahan, D. (2009) “Does oxidative capacity affect energy cost? An in vivo MR investigation of skeletal muscle energetics,” European journal of applied physiology, 106(2), pp. 229–242. Available at: https://doi.org/10.1007/s00421-009-1012-y.