Adaptation of lower limb movement patterns when maintaining performance in the presence of muscle fatigue
•Joint coupling variability increases when maintaining performance under fatigue.•Increased coupling variability may allow greater movement solutions as fatigue progresses.•Performance can be preserved when there is variability in the neuromotor system. Adaptations in lower limb movement patterns we...
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Veröffentlicht in: | Human movement science 2016-08, Vol.48, p.28-36 |
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Sprache: | eng |
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Zusammenfassung: | •Joint coupling variability increases when maintaining performance under fatigue.•Increased coupling variability may allow greater movement solutions as fatigue progresses.•Performance can be preserved when there is variability in the neuromotor system.
Adaptations in lower limb movement patterns were examined when performance was maintained during a fatiguing repetitive loading task. Forty recreationally active male and female participants performed single-leg hopping to volitional exhaustion at 2.2Hz to a submaximal height. Spatio-temporal characteristics, mechanical characteristics and variability of the knee-ankle and hip-knee joint couplings were determined at 20% increments during the duration of the hopping task. Variability of the knee-ankle and hip-knee couplings in the flexion/extension axis significantly increased during the loading and propulsion phases during the hopping task (p0.05), however foot contact time increased progressively during this task (p |
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ISSN: | 0167-9457 1872-7646 |
DOI: | 10.1016/j.humov.2016.04.003 |