- Title
- No physiological or biomechanical sex-by-load interactions during treadmill-based load carriage
- Creator
- Vickery-Howe, Danielle M.; Clarke, Anthea C.; Drain, Jace R.; Dascombe, Ben J.; Middleton, Kane J.
- Relation
- Ergonomics Vol. 63, Issue 9, p. 1175-1181
- Publisher Link
- http://dx.doi.org/10.1080/00140139.2020.1772379
- Publisher
- Taylor & Francis
- Resource Type
- journal article
- Date
- 2020
- Description
- This study investigated whether physiological demand or gait mechanics differ between sexes during treadmill load carriage. Female (n = 15) and male (n = 15) military recruit-type participants with no load carriage experience completed three 10-minute walking trials at a self-selected speed with increasing relative body-borne loads (0%, 20%, and 40% body weight). A range of cardiorespiratory, perceptual and biomechanical variables were measured. Self-selected walking speed was similar between sexes (4.6–4.8 km·h−1, p > .05) and there were no significant sex-by-load interactions for any variables. Absolute VO2 and VCO2 were greater in males (difference 175–178 mL·min−1, p < .001), however, when relative to body mass, VO2 was similar between sexes (p > .05). Across all loads, cadence was 7 ± 2 steps·min−1 faster (p = .004) and stance time was 0.06 ± 0.02 s shorter (p = .013) in females. Increasing load resulted in greater physiological demand, cadence, % stance time, and step length (p < .05).
- Subject
- gait; physiological demand; kinematics; spatiotemporal; military ergonomics
- Identifier
- http://hdl.handle.net/1959.13/1439762
- Identifier
- uon:41022
- Identifier
- ISSN:0014-0139
- Language
- eng
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