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Improving posture-motor dual-task with a supraposture-focus strategy in young and elderly adults
In a postural-suprapostural task, appropriate prioritization is necessary to achieve task goals and maintain postural stability. A “posture-first” principle is typically favored by elderly people in order to secure stance stability, but this comes at the cost of reduced suprapostural performance. Us...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5289460/ https://www.ncbi.nlm.nih.gov/pubmed/28151943 http://dx.doi.org/10.1371/journal.pone.0170687 |
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author | Yu, Shu-Han Huang, Cheng-Ya |
author_facet | Yu, Shu-Han Huang, Cheng-Ya |
author_sort | Yu, Shu-Han |
collection | PubMed |
description | In a postural-suprapostural task, appropriate prioritization is necessary to achieve task goals and maintain postural stability. A “posture-first” principle is typically favored by elderly people in order to secure stance stability, but this comes at the cost of reduced suprapostural performance. Using a postural-suprapostural task with a motor suprapostural goal, this study investigated differences between young and older adults in dual-task cost across varying task prioritization paradigms. Eighteen healthy young (mean age: 24.8 ± 5.2 years) and 18 older (mean age: 68.8 ± 3.7 years) adults executed a designated force-matching task from a stabilometer board using either a stabilometer stance (posture-focus strategy) or force-matching (supraposture-focus strategy) as the primary task. The dual-task effect (DTE: % change in dual-task condition; positive value: dual-task benefit, negative value: dual-task cost) of force-matching error and reaction time (RT), posture error, and approximate entropy (ApEn) of stabilometer movement were measured. When using the supraposture-focus strategy, young adults exhibited larger DTE values in each behavioral parameter than when using the posture-focus strategy. The older adults using the supraposture-focus strategy also attained larger DTE values for posture error, stabilometer movement ApEn, and force-matching error than when using the posture-focus strategy. These results suggest that the supraposture-focus strategy exerted an increased dual-task benefit for posture-motor dual-tasking in both healthy young and elderly adults. The present findings imply that the older adults should make use of the supraposture-focus strategy for fall prevention during dual-task execution. |
format | Online Article Text |
id | pubmed-5289460 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-52894602017-02-17 Improving posture-motor dual-task with a supraposture-focus strategy in young and elderly adults Yu, Shu-Han Huang, Cheng-Ya PLoS One Research Article In a postural-suprapostural task, appropriate prioritization is necessary to achieve task goals and maintain postural stability. A “posture-first” principle is typically favored by elderly people in order to secure stance stability, but this comes at the cost of reduced suprapostural performance. Using a postural-suprapostural task with a motor suprapostural goal, this study investigated differences between young and older adults in dual-task cost across varying task prioritization paradigms. Eighteen healthy young (mean age: 24.8 ± 5.2 years) and 18 older (mean age: 68.8 ± 3.7 years) adults executed a designated force-matching task from a stabilometer board using either a stabilometer stance (posture-focus strategy) or force-matching (supraposture-focus strategy) as the primary task. The dual-task effect (DTE: % change in dual-task condition; positive value: dual-task benefit, negative value: dual-task cost) of force-matching error and reaction time (RT), posture error, and approximate entropy (ApEn) of stabilometer movement were measured. When using the supraposture-focus strategy, young adults exhibited larger DTE values in each behavioral parameter than when using the posture-focus strategy. The older adults using the supraposture-focus strategy also attained larger DTE values for posture error, stabilometer movement ApEn, and force-matching error than when using the posture-focus strategy. These results suggest that the supraposture-focus strategy exerted an increased dual-task benefit for posture-motor dual-tasking in both healthy young and elderly adults. The present findings imply that the older adults should make use of the supraposture-focus strategy for fall prevention during dual-task execution. Public Library of Science 2017-02-02 /pmc/articles/PMC5289460/ /pubmed/28151943 http://dx.doi.org/10.1371/journal.pone.0170687 Text en © 2017 Yu, Huang http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Yu, Shu-Han Huang, Cheng-Ya Improving posture-motor dual-task with a supraposture-focus strategy in young and elderly adults |
title | Improving posture-motor dual-task with a supraposture-focus strategy in young and elderly adults |
title_full | Improving posture-motor dual-task with a supraposture-focus strategy in young and elderly adults |
title_fullStr | Improving posture-motor dual-task with a supraposture-focus strategy in young and elderly adults |
title_full_unstemmed | Improving posture-motor dual-task with a supraposture-focus strategy in young and elderly adults |
title_short | Improving posture-motor dual-task with a supraposture-focus strategy in young and elderly adults |
title_sort | improving posture-motor dual-task with a supraposture-focus strategy in young and elderly adults |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5289460/ https://www.ncbi.nlm.nih.gov/pubmed/28151943 http://dx.doi.org/10.1371/journal.pone.0170687 |
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