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	Analyses of elderly people's balance control mechanism using the stabilogram-diffusion method
	Wu Fangfang ; Cai Fuwen ; Wang Rencheng ; Jin Dewen ; Zhang Jichuan ; Wang Guangzhi
	2010-10-12 ; 2010-10-12
关键词	Practical Experimental/ biocontrol biodiffusion closed loop systems geriatrics image motion analysis mechanoception open loop systems/ elderly people balance control mechanism stabilogram-diffusion method aging effects 3-D motion capture system steady-state behavior open-loop postural control mechanism closed-loop postural control diffusion coefficient Hurst exponents/ A8770 Biomedical engineering A8738 Mechano- and chemio-ceptions
中文摘要	The balance control mechanisms of elderly people were compared with those of young people using the stabilogram-diffusion method to investigate the effects of aging on the balance control. Tests were made with 6 healthy elderly and 8 healthy young volunteers using a 3-D motion capture system. The results show that in elderly people the steady-state behavior with open-loop postural control mechanism is more unstable and that the closed-loop postural control has a longer delay for elderly people. All the parameters of elderly people, including the short-term and long-term diffusion coefficients, short-term and long-term Hurst exponents, critical time interval, and critical mean square displacement, are larger than those of the young volunteers, with the largest differences in the short-term diffusion coefficients, critical time intervals, and critical mean square displacements.
语种	中文
出版者	Tsinghua University Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/79129]
专题	清华大学
推荐引用方式 GB/T 7714	Wu Fangfang,Cai Fuwen,Wang Rencheng,et al. Analyses of elderly people's balance control mechanism using the stabilogram-diffusion method[J],2010, 2010.
APA	Wu Fangfang,Cai Fuwen,Wang Rencheng,Jin Dewen,Zhang Jichuan,&Wang Guangzhi.(2010).Analyses of elderly people's balance control mechanism using the stabilogram-diffusion method..
MLA	Wu Fangfang,et al."Analyses of elderly people's balance control mechanism using the stabilogram-diffusion method".(2010).

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