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Postural Complexity during Listening in Young and Middle-Aged Adults

Postural behavior has traditionally been studied using linear assessments of stability (e.g., center of pressure ellipse area). While these assessments may provide valuable information, they neglect the nonlinear nature of the postural system and often lead to the conflation of variability with path...

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Autores principales: Napoli, Charles Dane, Helfer, Karen S., van Emmerik, Richard E. A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9222853/
https://www.ncbi.nlm.nih.gov/pubmed/35741483
http://dx.doi.org/10.3390/e24060762
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author Napoli, Charles Dane
Helfer, Karen S.
van Emmerik, Richard E. A.
author_facet Napoli, Charles Dane
Helfer, Karen S.
van Emmerik, Richard E. A.
author_sort Napoli, Charles Dane
collection PubMed
description Postural behavior has traditionally been studied using linear assessments of stability (e.g., center of pressure ellipse area). While these assessments may provide valuable information, they neglect the nonlinear nature of the postural system and often lead to the conflation of variability with pathology. Moreover, assessing postural behavior in isolation or under otherwise unrealistic conditions may obscure the natural dynamics of the postural system. Alternatively, assessing postural complexity during ecologically valid tasks (e.g., conversing with others) may provide unique insight into the natural dynamics of the postural system across a wide array of temporal scales. Here, we assess postural complexity using Multiscale Sample Entropy in young and middle-aged adults during a listening task of varying degrees of difficulty. It was found that middle-aged adults exhibited greater postural complexity than did young adults, and that this age-related difference in postural complexity increased as a function of task difficulty. These results are inconsistent with the notion that aging is universally associated with a loss of complexity, and instead support the notion that age-related differences in complexity are task dependent.
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spelling pubmed-92228532022-06-24 Postural Complexity during Listening in Young and Middle-Aged Adults Napoli, Charles Dane Helfer, Karen S. van Emmerik, Richard E. A. Entropy (Basel) Article Postural behavior has traditionally been studied using linear assessments of stability (e.g., center of pressure ellipse area). While these assessments may provide valuable information, they neglect the nonlinear nature of the postural system and often lead to the conflation of variability with pathology. Moreover, assessing postural behavior in isolation or under otherwise unrealistic conditions may obscure the natural dynamics of the postural system. Alternatively, assessing postural complexity during ecologically valid tasks (e.g., conversing with others) may provide unique insight into the natural dynamics of the postural system across a wide array of temporal scales. Here, we assess postural complexity using Multiscale Sample Entropy in young and middle-aged adults during a listening task of varying degrees of difficulty. It was found that middle-aged adults exhibited greater postural complexity than did young adults, and that this age-related difference in postural complexity increased as a function of task difficulty. These results are inconsistent with the notion that aging is universally associated with a loss of complexity, and instead support the notion that age-related differences in complexity are task dependent. MDPI 2022-05-28 /pmc/articles/PMC9222853/ /pubmed/35741483 http://dx.doi.org/10.3390/e24060762 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Napoli, Charles Dane
Helfer, Karen S.
van Emmerik, Richard E. A.
Postural Complexity during Listening in Young and Middle-Aged Adults
title Postural Complexity during Listening in Young and Middle-Aged Adults
title_full Postural Complexity during Listening in Young and Middle-Aged Adults
title_fullStr Postural Complexity during Listening in Young and Middle-Aged Adults
title_full_unstemmed Postural Complexity during Listening in Young and Middle-Aged Adults
title_short Postural Complexity during Listening in Young and Middle-Aged Adults
title_sort postural complexity during listening in young and middle-aged adults
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9222853/
https://www.ncbi.nlm.nih.gov/pubmed/35741483
http://dx.doi.org/10.3390/e24060762
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