Document Type

Article

Language

eng

Format of Original

4 p.

Publication Date

9-2013

Publisher

Wiley

Source Publication

Muscle & Nerve

Source ISSN

1097-4598

Original Item ID

doi: 10.1002/mus.23836

Abstract

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.

Comments

Accepted version. Muscle & Nerve, Vol. 48, No. 3 (September 2013): 436-439. DOI: 10.1002/mus.23836. © 2013 Wiley. Used with permission.

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