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Appl Physiol Nutr Metab. 2017 Oct;42(10):1118-1121. doi: 10.1139/apnm-2017-0013. Epub 2017 Jun 21.

Influence of sex on performance fatigability of the plantar flexors following repeated maximal dynamic shortening contractions.

Author information

1
a Department of Human Physiology, University of Oregon, Eugene, OR 97403, USA.
2
b Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada.
3
c School of Health and Exercise Sciences, The University of British Columbia, ART 360, 1147 Research Road, Kelowna, BC V1V 1V7, Canada.

Abstract

The purpose was to determine sex differences in fatigability during maximal, unconstrained velocity, shortening plantar flexions. The role of time-dependent measures (i.e., rate of torque development, rate of velocity development, and rate of neuromuscular activation) in such sex-related differences was also examined. By task termination, females exhibited smaller reductions in power and similar changes in rate of neuromuscular activation than males, indicating females were less fatigable than males.

KEYWORDS:

electromyography; fatigue musculaire; muscle fatigue; power output; puissance produite; sex; sexe; velocity; vélocité; électromyographie

PMID:
28636840
DOI:
10.1139/apnm-2017-0013
[Indexed for MEDLINE]

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