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...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Hindawi Publishing Corporation
2015
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| Online Access: | 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 |
| _version_ | 1848818358491807744 |
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| author | Zahari, Taha Kun, Liu Wang, Hongrui Xiao, Jinzhuang |
| author_facet | Zahari, Taha Kun, Liu Wang, Hongrui Xiao, Jinzhuang |
| author_sort | Zahari, Taha |
| building | UMP Institutional Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-15T01:36:24Z |
| format | Article |
| id | ump-8891 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T01:36:24Z |
| publishDate | 2015 |
| publisher | Hindawi Publishing Corporation |
| recordtype | eprints |
| repository_type | Digital Repository |
| 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). (Published) http://dx.doi.org/10.1155/2015/158478 DOI: 10.1155/2015/158478 |
| spellingShingle | TS Manufactures Zahari, Taha Kun, Liu Wang, Hongrui Xiao, Jinzhuang Analysis of Human Standing Balance by Largest Lyapunov Exponent |
| title | 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_short | Analysis of Human Standing Balance by Largest Lyapunov Exponent |
| title_sort | analysis of human standing balance by largest lyapunov exponent |
| topic | TS Manufactures |
| 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 |