Discrimination of standing postures between young and elderly people based on center of pressure

Abstract Posturography is utilized to assess the influence of aging on postural control. Although this measurement is advantageous for finding group-level differences between the young and the elderly, it is unclear whether it has the potential to differentiate elderly individuals who are affected b...

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Autores principales:	Kimiya Fujio, Yahiko Takeuchi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6107e394525d40738925cccef98cc496
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spelling	oai:doaj.org-article:6107e394525d40738925cccef98cc4962021-12-02T15:12:52ZDiscrimination of standing postures between young and elderly people based on center of pressure10.1038/s41598-020-80717-z2045-2322https://doaj.org/article/6107e394525d40738925cccef98cc4962021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-80717-zhttps://doaj.org/toc/2045-2322Abstract Posturography is utilized to assess the influence of aging on postural control. Although this measurement is advantageous for finding group-level differences between the young and the elderly, it is unclear whether it has the potential to differentiate elderly individuals who are affected by various impacts of aging. The purpose of this study was to determine the utility of posturography to discriminate elderly individuals from young adults. We investigated the performances of the random forest classifiers constructed from center of pressure (COP) indices for discriminating standing postures between healthy elderly and young people. Postural sways in 19 young and 31 community-dwelling elderly participants were measured using force plates in 4 standing conditions: bipedal standing, standing on a narrow base, standing on foam rubber, and standing with eyes closed. We further verified the informative predictors that contributed to the prediction model. As the results, the classifier based on the COP indices for standing on foam rubber showed the best performance (accuracy: 93.4%, sensitivity: 94.4%, specificity: 93.6%, area under the curve of receiving operator characteristics: 0.95), followed by the classifier for standing with eyes closed. The informative predictors varied depending on the postural conditions. Our findings demonstrated the potential of posturography for identifying elderly postures. The evaluation of sensory re-weighting using the appropriate COP indices would be a useful clinical tool for detecting the progress of aging on postural control.Kimiya FujioYahiko TakeuchiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kimiya Fujio Yahiko Takeuchi Discrimination of standing postures between young and elderly people based on center of pressure
description	Abstract Posturography is utilized to assess the influence of aging on postural control. Although this measurement is advantageous for finding group-level differences between the young and the elderly, it is unclear whether it has the potential to differentiate elderly individuals who are affected by various impacts of aging. The purpose of this study was to determine the utility of posturography to discriminate elderly individuals from young adults. We investigated the performances of the random forest classifiers constructed from center of pressure (COP) indices for discriminating standing postures between healthy elderly and young people. Postural sways in 19 young and 31 community-dwelling elderly participants were measured using force plates in 4 standing conditions: bipedal standing, standing on a narrow base, standing on foam rubber, and standing with eyes closed. We further verified the informative predictors that contributed to the prediction model. As the results, the classifier based on the COP indices for standing on foam rubber showed the best performance (accuracy: 93.4%, sensitivity: 94.4%, specificity: 93.6%, area under the curve of receiving operator characteristics: 0.95), followed by the classifier for standing with eyes closed. The informative predictors varied depending on the postural conditions. Our findings demonstrated the potential of posturography for identifying elderly postures. The evaluation of sensory re-weighting using the appropriate COP indices would be a useful clinical tool for detecting the progress of aging on postural control.
format	article
author	Kimiya Fujio Yahiko Takeuchi
author_facet	Kimiya Fujio Yahiko Takeuchi
author_sort	Kimiya Fujio
title	Discrimination of standing postures between young and elderly people based on center of pressure
title_short	Discrimination of standing postures between young and elderly people based on center of pressure
title_full	Discrimination of standing postures between young and elderly people based on center of pressure
title_fullStr	Discrimination of standing postures between young and elderly people based on center of pressure
title_full_unstemmed	Discrimination of standing postures between young and elderly people based on center of pressure
title_sort	discrimination of standing postures between young and elderly people based on center of pressure
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/6107e394525d40738925cccef98cc496
work_keys_str_mv	AT kimiyafujio discriminationofstandingposturesbetweenyoungandelderlypeoplebasedoncenterofpressure AT yahikotakeuchi discriminationofstandingposturesbetweenyoungandelderlypeoplebasedoncenterofpressure
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Discrimination of standing postures between young and elderly people based on center of pressure

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