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Men and women adopt similar walking mechanics and muscle activation patterns during load carriage

Silder, Amy, Delp, Scott L., Besier, Thor·2013·Journal of Biomechanics
DOI 10.1016/j.jbiomech.2013.06.020
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Abstract

Although numerous studies have investigated the effects of load carriage on gait mechanics, most have been conducted on active military men. It remains unknown whether men and women adapt differently to carrying load. The purpose of this study was to compare the effects of load carriage on gait mechanics, muscle activation patterns, and metabolic cost between men and women walking at their preferred, unloaded walking speed. We measured whole body motion, ground reaction forces, muscle activity, and metabolic cost from 17 men and 12 women. Subjects completed four walking trials on an instrumented treadmill, each five minutes in duration, while carrying no load or an additional 10%, 20%, or 30% of body weight. Women were shorter (p<0.01), had lower body mass (p=0.01), and had lower fat-free mass (p=0.02) compared to men. No significant differences between men and women were observed for any measured gait parameter or muscle activation pattern. As load increased, so did net metabolic cost, the duration of stance phase, peak stance phase hip, knee, and ankle flexion angles, and all peak joint extension moments. The increase in the peak vertical ground reaction force was less than the carried load (e.g. ground force increased approximately 6% with each 10% increase in load). Integrated muscle activity of the soleus, medial gastrocnemius, lateral hamstrings, vastus medialis, vastus lateralis, and rectus femoris increased with load. We conclude that, despite differences in anthropom…

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  • This interpretation is fully consistent with the neuromuscular activation data available from the tissue level under different load conditions.

    “This interpretation is fully consistent with the neuromuscular activation data available from the tissue level under different load conditions (52,66).”

    From Walking economy is predictably determined by speed, grade, and gravitational load. (2017) · cites this paper as [66]

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Metadata

Authors
Silder, A., Delp, S. L., & Besier, T.
Venue
Journal of Biomechanics
Publisher
Elsevier BV
Published
2013-09
Volume
46
Issue
14
Pages
2522-2528
ISSN
0021-9290
DOI
10.1016/j.jbiomech.2013.06.020
Cited by
121
References
1
Language
en
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Funders
Department of Defense (1004-001)

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