INTRODUCTION: Whether there is a gender difference in fatigue and recovery from maximal velocity fatiguing contractions and across muscles is not understood. METHODS: Sixteen men and 19 women performed 90 isotonic contractions at maximal voluntary shortening velocity (maximal velocity concentric contractions, MVCC) with the elbow flexor and knee extensor muscles (separate days) at a load equivalent to 20% maximal voluntary isometric contraction (MVIC). RESULTS: Power (from MVCCs) decreased similarly for men and women for both muscles (P > 0.05). Men and women had similar declines in MVIC of elbow flexors, but men had greater reductions in knee extensor MVIC force and MVIC electromyogram activity than women (P < 0.05). The decline in MVIC and power was greater, and force recovery was slower for the elbow flexors compared with knee extensors. CONCLUSIONS: The gender difference in muscle fatigue often observed during isometric tasks was diminished during fast dynamic contractions for upper and lower limb muscles.
INTRODUCTION: Whether there is a gender difference in fatigue and recovery from maximal velocity fatiguing contractions and across muscles is not understood. METHODS: Sixteen men and 19 women performed 90 isotonic contractions at maximal voluntary shortening velocity (maximal velocity concentric contractions, MVCC) with the elbow flexor and knee extensor muscles (separate days) at a load equivalent to 20% maximal voluntary isometric contraction (MVIC). RESULTS: Power (from MVCCs) decreased similarly for men and women for both muscles (P > 0.05). Men and women had similar declines in MVIC of elbow flexors, but men had greater reductions in knee extensor MVIC force and MVIC electromyogram activity than women (P < 0.05). The decline in MVIC and power was greater, and force recovery was slower for the elbow flexors compared with knee extensors. CONCLUSIONS: The gender difference in muscle fatigue often observed during isometric tasks was diminished during fast dynamic contractions for upper and lower limb muscles.
Authors: Keith G Avin; Maureen R Naughton; Brett W Ford; Haley E Moore; Maya N Monitto-Webber; Amy M Stark; A John Gentile; Laura A Frey Law Journal: Med Sci Sports Exerc Date: 2010-10 Impact factor: 5.411
Authors: Henry R Kuhnen; Megan M Rybar; Tanya Onushko; Ryan E Doyel; Sandra K Hunter; Brian D Schmit; Allison S Hyngstrom Journal: Muscle Nerve Date: 2015-03 Impact factor: 3.217
Authors: Jonathon Senefeld; Hugo M Pereira; Nicholas Elliott; Tejin Yoon; Sandra K Hunter Journal: Med Sci Sports Exerc Date: 2018-05 Impact factor: 5.411
Authors: Paolo B Dominelli; Yannick Molgat-Seon; Donald E G Griesdale; Carli M Peters; Jean-Sébastien Blouin; Mypinder Sekhon; Giulio S Dominelli; William R Henderson; Glen E Foster; Lee M Romer; Michael S Koehle; A William Sheel Journal: J Physiol Date: 2017-06-19 Impact factor: 5.182