Ageing effects on knee and ankle joint angles at key events and phases of the gait cycle.

Begg, R. K. and Sparrow, W.R. 2006, Ageing effects on knee and ankle joint angles at key events and phases of the gait cycle., Journal of medical engineering and technology, vol. 30, no. 6, pp. 382-389.

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Title Ageing effects on knee and ankle joint angles at key events and phases of the gait cycle.
Author(s) Begg, R. K.
Sparrow, W.R.
Journal name Journal of medical engineering and technology
Volume number 30
Issue number 6
Start page 382
End page 389
Publisher Informa Healthcare
Place of publication London, England
Publication date 2006
ISSN 0309-1902
1464-522X
Keyword(s) gait analysis
joint angles
kinematics
biomechanics
elderly
Summary The objective of this research was to determine whether joint angles at critical gait events and during major energy generation/absorption phases of the gait cycle would reliably discriminate age-related degeneration during unobstructed walking. The gaits of 24 healthy adults (12 young and 12 elderly) were analysed using the PEAK Motus motion analysis system. The elderly participants showed significantly greater single (60.3% versus 62.3%, p < 0.01) and double ( p < 0.05) support times, reduced knee flexion (47.7° versus 43.0°, p < 0.05) and ankle plantarflexion (16.8° compared to 3.3°, p = 0.053) at toe off, reduced knee flexion during push-off and reduced ankle dorsiflexion (16.8° compared to 22.0°, p < 0.05) during the swing phase. The plantarflexing ankle joint motion during the stance to swing phase transition (A2) for the young group (31.3°) was about twice ( p < 0.05) that of the elderly (16.9°). Reduced knee extension range of motion suggests that the elderly favoured a flexed-knee gait to assist in weight acceptance. Reduced dorsiflexion by the elderly in the swing phase implies greater risk of toe contact with obstacles. Overall, the results suggest that joint angle measures at critical events/phases in the gait cycle provide a useful indication of age-related degeneration in the control of lower limb trajectories during unobstructed walking.
Language eng
Field of Research 110601 Biomechanics
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2006, Informa UK Ltd
Persistent URL http://hdl.handle.net/10536/DRO/DU:30008965

Document type: Journal Article
Collection: School of Exercise and Nutrition Sciences
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