Abstract:
:The aim of this study was to analyze differences in biomechanical parameters between elderly and control participants when stepping up, to evaluate control of balance. Eleven control and 14 elderly participants performed a step from an initial static posture onto a 7-cm-high force plate. For the spontaneous-velocity condition, elderly participants performed a slower progression velocity than control participants. Elderly participants spent proportionally more time in stance phase, with a corresponding decrease in swing phase, than the control participants, irrespective of movement velocity. In contrast, at spontaneous velocity the parameters related to ground-reaction force (GRF) showed that anteroposterior and mediolateral forces at toe-off of the support limb and the slope of vertical force during weight transfer were significantly smaller for the elderly than for control participants. These GRF parameters depended on the stepping-up velocity. The elderly develop a spatiotemporal strategy and reduced movement velocity to control support balance.
journal_name
J Aging Phys Actjournal_title
Journal of aging and physical activityauthors
Michel-Pellegrino V,Hwqaon D,Hogrel JY,Duchêne Jdoi
10.1123/japa.16.2.171subject
Has Abstractpub_date
2008-04-01 00:00:00pages
171-87issue
2eissn
1063-8652issn
1543-267Xjournal_volume
16pub_type
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journal_title:Journal of aging and physical activity
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journal_title:Journal of aging and physical activity
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journal_title:Journal of aging and physical activity
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journal_title:Journal of aging and physical activity
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journal_title:Journal of aging and physical activity
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pub_type: 杂志文章
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更新日期:2020-01-01 00:00:00
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journal_title:Journal of aging and physical activity
pub_type: 杂志文章
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journal_title:Journal of aging and physical activity
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journal_title:Journal of aging and physical activity
pub_type: 杂志文章,随机对照试验
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