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Recovery of dynamic stability during slips unaffected by arm swing in people with Parkinson’s Disease
The arm elevation strategy assists in recovering stability during slips in healthy young and elderly individuals. However, in people with Parkinson’s Disease, one of the main motor symptoms affecting the upper limbs is reduced arm swing which intensifies throughout the course of the disease before b...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8023478/ https://www.ncbi.nlm.nih.gov/pubmed/33822806 http://dx.doi.org/10.1371/journal.pone.0249303 |
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author | Siragy, Tarique Hill, Allen Nantel, Julie |
author_facet | Siragy, Tarique Hill, Allen Nantel, Julie |
author_sort | Siragy, Tarique |
collection | PubMed |
description | The arm elevation strategy assists in recovering stability during slips in healthy young and elderly individuals. However, in people with Parkinson’s Disease, one of the main motor symptoms affecting the upper limbs is reduced arm swing which intensifies throughout the course of the disease before becoming absent. This holds direct implications for these individuals when encountering slips as the arm elevation strategy is an integral component in the interlimb slip response to restore stability. Arm swing’s effect in recovering from slips in people with Parkinson’s Disease though remains unexamined. Twenty people with Parkinson’s Disease (63.78 ± 8.97 years) walked with restricted and unrestricted arm swing conditions on a dual-belt treadmill where slips were induced on the least and most affected sides. Data were collected on the CAREN Extended System (Motek Medical, Amsterdam, NL). The Margin of Stability, linear and angular trunk velocities, as well as step length, time, and width were calculated. Data were examined during the slipped step and recovery step. The restricted arm swing condition, compared to unrestricted, caused a faster step time during the slipped step. Compared to the most affected leg, the least affected had a wider step width during the slipped step. During the recovery step, the least affected leg had a larger anteroposterior Margin of Stability and longer step time than the most affected. No differences between our arm swing conditions suggests that the normal arm swing in our participants was not more effective at restoring stability after an induced slip compared to when their arm motion was restricted. This may be due to the arm elevation strategy being ineffective in counteracting the slip’s backward destabilization in these individuals. Differences between the legs revealed that our participants were asymmetrically impaired in their slip recovery response. |
format | Online Article Text |
id | pubmed-8023478 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-80234782021-04-15 Recovery of dynamic stability during slips unaffected by arm swing in people with Parkinson’s Disease Siragy, Tarique Hill, Allen Nantel, Julie PLoS One Research Article The arm elevation strategy assists in recovering stability during slips in healthy young and elderly individuals. However, in people with Parkinson’s Disease, one of the main motor symptoms affecting the upper limbs is reduced arm swing which intensifies throughout the course of the disease before becoming absent. This holds direct implications for these individuals when encountering slips as the arm elevation strategy is an integral component in the interlimb slip response to restore stability. Arm swing’s effect in recovering from slips in people with Parkinson’s Disease though remains unexamined. Twenty people with Parkinson’s Disease (63.78 ± 8.97 years) walked with restricted and unrestricted arm swing conditions on a dual-belt treadmill where slips were induced on the least and most affected sides. Data were collected on the CAREN Extended System (Motek Medical, Amsterdam, NL). The Margin of Stability, linear and angular trunk velocities, as well as step length, time, and width were calculated. Data were examined during the slipped step and recovery step. The restricted arm swing condition, compared to unrestricted, caused a faster step time during the slipped step. Compared to the most affected leg, the least affected had a wider step width during the slipped step. During the recovery step, the least affected leg had a larger anteroposterior Margin of Stability and longer step time than the most affected. No differences between our arm swing conditions suggests that the normal arm swing in our participants was not more effective at restoring stability after an induced slip compared to when their arm motion was restricted. This may be due to the arm elevation strategy being ineffective in counteracting the slip’s backward destabilization in these individuals. Differences between the legs revealed that our participants were asymmetrically impaired in their slip recovery response. Public Library of Science 2021-04-06 /pmc/articles/PMC8023478/ /pubmed/33822806 http://dx.doi.org/10.1371/journal.pone.0249303 Text en © 2021 Siragy et al 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 Siragy, Tarique Hill, Allen Nantel, Julie Recovery of dynamic stability during slips unaffected by arm swing in people with Parkinson’s Disease |
title | Recovery of dynamic stability during slips unaffected by arm swing in people with Parkinson’s Disease |
title_full | Recovery of dynamic stability during slips unaffected by arm swing in people with Parkinson’s Disease |
title_fullStr | Recovery of dynamic stability during slips unaffected by arm swing in people with Parkinson’s Disease |
title_full_unstemmed | Recovery of dynamic stability during slips unaffected by arm swing in people with Parkinson’s Disease |
title_short | Recovery of dynamic stability during slips unaffected by arm swing in people with Parkinson’s Disease |
title_sort | recovery of dynamic stability during slips unaffected by arm swing in people with parkinson’s disease |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8023478/ https://www.ncbi.nlm.nih.gov/pubmed/33822806 http://dx.doi.org/10.1371/journal.pone.0249303 |
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