Correlation between movement complexity during static standing and balance function in institutionalized older adults

Momoko Yamagata,1 Tome Ikezoe,1 Midori Kamiya,1 Mitsuhiro Masaki,2,3 Noriaki Ichihashi1 1Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, 2Department of Physical Therapy, 3Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigat...

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Autores principales:	Yamagata M, Ikezoe T, Kamiya M, Masaki M, Ichihashi N
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2017
Materias:	Older adults Posture Balance Standing Complexity Entropy Geriatrics RC952-954.6
Acceso en línea:	https://doaj.org/article/b9ba8fce000a4448b7f2391b883dca44
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spelling	oai:doaj.org-article:b9ba8fce000a4448b7f2391b883dca442021-12-02T02:43:55ZCorrelation between movement complexity during static standing and balance function in institutionalized older adults1178-1998https://doaj.org/article/b9ba8fce000a4448b7f2391b883dca442017-03-01T00:00:00Zhttps://www.dovepress.com/correlation-between-movement-complexity-during-static-standing-and-bal-peer-reviewed-article-CIAhttps://doaj.org/toc/1178-1998Momoko Yamagata,1 Tome Ikezoe,1 Midori Kamiya,1 Mitsuhiro Masaki,2,3 Noriaki Ichihashi1 1Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, 2Department of Physical Therapy, 3Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan Purpose: Sample entropy (SampEn) is an analysis to evaluate movement complexity of the center of pressure (COP). A lower value of SampEn indicates lower complexity of COP variability, that is, rigidity, and lower degrees of freedom. Previous studies reported the association of increased SampEn with improved standing balance ability in young subjects. However, no studies have examined these relationships among older adults. Thus, we aimed to investigate the relationship between SampEn and standing balance ability in older adults.Subjects and methods: The subjects were 33 institutionalized older adults (aged 82.2±6.5 years). COP during static standing was measured. The standard deviation (SD) values of COP and SampEn in the sagittal and frontal planes were calculated using time series data. One-leg standing test (OLST), functional reach (FR) test, and lateral reach (LR) test were also measured to evaluate standing balance ability.Results: OLST, FR, and LR were 6.5±8.3 s, 19.8±5.9 cm, and 18.2±6.4 cm, respectively. Pearson correlation analysis revealed that SampEn in the sagittal plane significantly correlated with OLST (r=-0.35) and FR (r=-0.36). However, SampEn in the frontal plane and SD of COP in both sagittal and frontal planes had no relationship with any of the clinical balance tests.Conclusion: Lower SampEn implies rigidity for postural control. In the present study, it was found that lower SampEn in the sagittal plane was related to a higher balance function, which suggests that older adults utilized body rigidity to maintain postural stability as a compensative strategy. Keywords: older adults, posture, balance, standing, complexity, entropyYamagata MIkezoe TKamiya MMasaki MIchihashi NDove Medical PressarticleOlder adultsPostureBalanceStandingComplexityEntropyGeriatricsRC952-954.6ENClinical Interventions in Aging, Vol Volume 12, Pp 499-503 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Older adults Posture Balance Standing Complexity Entropy Geriatrics RC952-954.6
spellingShingle	Older adults Posture Balance Standing Complexity Entropy Geriatrics RC952-954.6 Yamagata M Ikezoe T Kamiya M Masaki M Ichihashi N Correlation between movement complexity during static standing and balance function in institutionalized older adults
description	Momoko Yamagata,1 Tome Ikezoe,1 Midori Kamiya,1 Mitsuhiro Masaki,2,3 Noriaki Ichihashi1 1Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, 2Department of Physical Therapy, 3Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan Purpose: Sample entropy (SampEn) is an analysis to evaluate movement complexity of the center of pressure (COP). A lower value of SampEn indicates lower complexity of COP variability, that is, rigidity, and lower degrees of freedom. Previous studies reported the association of increased SampEn with improved standing balance ability in young subjects. However, no studies have examined these relationships among older adults. Thus, we aimed to investigate the relationship between SampEn and standing balance ability in older adults.Subjects and methods: The subjects were 33 institutionalized older adults (aged 82.2±6.5 years). COP during static standing was measured. The standard deviation (SD) values of COP and SampEn in the sagittal and frontal planes were calculated using time series data. One-leg standing test (OLST), functional reach (FR) test, and lateral reach (LR) test were also measured to evaluate standing balance ability.Results: OLST, FR, and LR were 6.5±8.3 s, 19.8±5.9 cm, and 18.2±6.4 cm, respectively. Pearson correlation analysis revealed that SampEn in the sagittal plane significantly correlated with OLST (r=-0.35) and FR (r=-0.36). However, SampEn in the frontal plane and SD of COP in both sagittal and frontal planes had no relationship with any of the clinical balance tests.Conclusion: Lower SampEn implies rigidity for postural control. In the present study, it was found that lower SampEn in the sagittal plane was related to a higher balance function, which suggests that older adults utilized body rigidity to maintain postural stability as a compensative strategy. Keywords: older adults, posture, balance, standing, complexity, entropy
format	article
author	Yamagata M Ikezoe T Kamiya M Masaki M Ichihashi N
author_facet	Yamagata M Ikezoe T Kamiya M Masaki M Ichihashi N
author_sort	Yamagata M
title	Correlation between movement complexity during static standing and balance function in institutionalized older adults
title_short	Correlation between movement complexity during static standing and balance function in institutionalized older adults
title_full	Correlation between movement complexity during static standing and balance function in institutionalized older adults
title_fullStr	Correlation between movement complexity during static standing and balance function in institutionalized older adults
title_full_unstemmed	Correlation between movement complexity during static standing and balance function in institutionalized older adults
title_sort	correlation between movement complexity during static standing and balance function in institutionalized older adults
publisher	Dove Medical Press
publishDate	2017
url	https://doaj.org/article/b9ba8fce000a4448b7f2391b883dca44
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_version_	1718402186500636672

Correlation between movement complexity during static standing and balance function in institutionalized older adults

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