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Correlation between movement complexity during static standing and balance function in institutionalized older adults
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...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Dove Medical Press
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5352153/ https://www.ncbi.nlm.nih.gov/pubmed/28331301 http://dx.doi.org/10.2147/CIA.S132425 |
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author | Yamagata, Momoko Ikezoe, Tome Kamiya, Midori Masaki, Mitsuhiro Ichihashi, Noriaki |
author_facet | Yamagata, Momoko Ikezoe, Tome Kamiya, Midori Masaki, Mitsuhiro Ichihashi, Noriaki |
author_sort | Yamagata, Momoko |
collection | PubMed |
description | 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. |
format | Online Article Text |
id | pubmed-5352153 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Dove Medical Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-53521532017-03-22 Correlation between movement complexity during static standing and balance function in institutionalized older adults Yamagata, Momoko Ikezoe, Tome Kamiya, Midori Masaki, Mitsuhiro Ichihashi, Noriaki Clin Interv Aging Original Research 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. Dove Medical Press 2017-03-08 /pmc/articles/PMC5352153/ /pubmed/28331301 http://dx.doi.org/10.2147/CIA.S132425 Text en © 2017 Yamagata et al. This work is published and licensed by Dove Medical Press Limited The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License (http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. |
spellingShingle | Original Research Yamagata, Momoko Ikezoe, Tome Kamiya, Midori Masaki, Mitsuhiro Ichihashi, Noriaki Correlation between movement complexity during static standing and balance function in institutionalized older adults |
title | 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_short | 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 |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5352153/ https://www.ncbi.nlm.nih.gov/pubmed/28331301 http://dx.doi.org/10.2147/CIA.S132425 |
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