期刊
AGE AND AGEING
卷 39, 期 6, 页码 688-694出版社
OXFORD UNIV PRESS
DOI: 10.1093/ageing/afq113
关键词
gait analysis; ageing; medial-lateral control; exacerbated decline; mechanical work expenditure; elderly
资金
- NIH, National Institute on Aging
Methods: investigated walking under three conditions: (i) usual speed, (ii) fast speed and (iii) post-activity in 183 Baltimore Longitudinal Study of Aging participants (mean 73 +/- 9 years) who could walk unassisted. Results: across all tasks, gait speed decreased with older age and this decline rate was exacerbated in the fast-speed walking task, compared with usual-speed walking (P < 0.001). Medial-lateral (ML) hip-generative mechanical work expenditure declined with age and the rate of decline was steeper for walking at fast speed and post-activity during hip extension (P = 0.032 and 0.027, respectively), compared with usual-speed walking. Conclusions: these findings indicate that older adults experience exacerbated declines in gait speed and ML control of the hip, which is explicitly evident during challenging walking. Exercise programmes aimed at improving gait speed and ML joint power from hip and ankle may help reverse age-associated changes in gait pattern among older adults.
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