Analysis of Human Standing Balance by Largest Lyapunov Exponent

Analysis of Human Standing Balance by Largest Lyapunov Exponent

The purpose of this research is to analyse the relationship between nonlinear dynamic character and individuals’ standing balance by the largest Lyapunov exponent,which is regarded as a metric for assessing standing balance.According to previous study,the largest Lyapunov exponent from centre of pre...

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Main Authors: Zahari, Taha, Kun, Liu, Wang, Hongrui, Xiao, Jinzhuang
Format: Article
Language:English
Published: Hindawi Publishing Corporation 2015
Subjects:
TS Manufactures
Online Access:http://umpir.ump.edu.my/id/eprint/8891/
http://umpir.ump.edu.my/id/eprint/8891/
http://umpir.ump.edu.my/id/eprint/8891/
http://umpir.ump.edu.my/id/eprint/8891/2/Analysis%20of%20Human%20Standing%20Balance%20by%20Largest%20Lyapunov%20Exponent.pdf
id ump-8891
recordtype eprints
spelling ump-88912018-01-22T04:10:52Z http://umpir.ump.edu.my/id/eprint/8891/ Analysis of Human Standing Balance by Largest Lyapunov Exponent Zahari, Taha Kun, Liu Wang, Hongrui Xiao, Jinzhuang TS Manufactures The purpose of this research is to analyse the relationship between nonlinear dynamic character and individuals’ standing balance by the largest Lyapunov exponent,which is regarded as a metric for assessing standing balance.According to previous study,the largest Lyapunov exponent from centre of pressure time series could not well quantify the human balance ability.In this research,two improvements were made.Firstly,an external stimulus was applied to feet in the form of continuous horizontal sinusoidal motion by a moving platform.Secondly,a multiaccelerometer subsystem was adopted.Twenty healthy volunteers participated in this experiment.A new metric,coordinated largest Lyapunov exponent was proposed,which reflected the relationship of body segments by integrating multidimensional largest Lyapunov exponent values.By using this metric in actual standing performance under sinusoidal stimulus,an obvious relationship between the new metric and the actual balance ability was found in the majority of the subjects.These results show that the sinusoidal stimulus can make human balance characteristics more obvious,which is beneficial to assess balance,and balance is determined by the ability of coordinating all body segments. Hindawi Publishing Corporation 2015 Article PeerReviewed application/pdf en cc_by http://umpir.ump.edu.my/id/eprint/8891/2/Analysis%20of%20Human%20Standing%20Balance%20by%20Largest%20Lyapunov%20Exponent.pdf Zahari, Taha and Kun, Liu and Wang, Hongrui and Xiao, Jinzhuang (2015) Analysis of Human Standing Balance by Largest Lyapunov Exponent. Computational Intelligence and Neuroscience, 2015. pp. 1-10. ISSN 1687-5265 (print); 1687-5273 (online) http://dx.doi.org/10.1155/2015/158478 DOI: 10.1155/2015/158478
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TS Manufactures
spellingShingle TS Manufactures
Zahari, Taha
Kun, Liu
Wang, Hongrui
Xiao, Jinzhuang
Analysis of Human Standing Balance by Largest Lyapunov Exponent
description The purpose of this research is to analyse the relationship between nonlinear dynamic character and individuals’ standing balance by the largest Lyapunov exponent,which is regarded as a metric for assessing standing balance.According to previous study,the largest Lyapunov exponent from centre of pressure time series could not well quantify the human balance ability.In this research,two improvements were made.Firstly,an external stimulus was applied to feet in the form of continuous horizontal sinusoidal motion by a moving platform.Secondly,a multiaccelerometer subsystem was adopted.Twenty healthy volunteers participated in this experiment.A new metric,coordinated largest Lyapunov exponent was proposed,which reflected the relationship of body segments by integrating multidimensional largest Lyapunov exponent values.By using this metric in actual standing performance under sinusoidal stimulus,an obvious relationship between the new metric and the actual balance ability was found in the majority of the subjects.These results show that the sinusoidal stimulus can make human balance characteristics more obvious,which is beneficial to assess balance,and balance is determined by the ability of coordinating all body segments.
format Article
author Zahari, Taha
Kun, Liu
Wang, Hongrui
Xiao, Jinzhuang
author_facet Zahari, Taha
Kun, Liu
Wang, Hongrui
Xiao, Jinzhuang
author_sort Zahari, Taha
title Analysis of Human Standing Balance by Largest Lyapunov Exponent
title_short Analysis of Human Standing Balance by Largest Lyapunov Exponent
title_full Analysis of Human Standing Balance by Largest Lyapunov Exponent
title_fullStr Analysis of Human Standing Balance by Largest Lyapunov Exponent
title_full_unstemmed Analysis of Human Standing Balance by Largest Lyapunov Exponent
title_sort analysis of human standing balance by largest lyapunov exponent
publisher Hindawi Publishing Corporation
publishDate 2015
url http://umpir.ump.edu.my/id/eprint/8891/
http://umpir.ump.edu.my/id/eprint/8891/
http://umpir.ump.edu.my/id/eprint/8891/
http://umpir.ump.edu.my/id/eprint/8891/2/Analysis%20of%20Human%20Standing%20Balance%20by%20Largest%20Lyapunov%20Exponent.pdf
first_indexed 2023-09-18T22:06:57Z
last_indexed 2023-09-18T22:06:57Z
_version_ 1777414772057178112

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