Altered Dynamic Postural Control during Step Turning in Persons with Early-Stage Parkinson's Disease

Persons with early-stage Parkinson's disease (EPD) do not typically experience marked functional deficits but may have difficulty with turning tasks. Studies evaluating turning have focused on individuals in advanced stages of the disease. The purpose of this study was to compare postural contr...

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Detalles Bibliográficos
Autores principales: Song, Jooeun, Sigward, Susan, Fisher, Beth, Salem, George J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2012
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3306994/
https://www.ncbi.nlm.nih.gov/pubmed/22518349
http://dx.doi.org/10.1155/2012/386962
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author Song, Jooeun
Sigward, Susan
Fisher, Beth
Salem, George J.
author_facet Song, Jooeun
Sigward, Susan
Fisher, Beth
Salem, George J.
author_sort Song, Jooeun
collection PubMed
description Persons with early-stage Parkinson's disease (EPD) do not typically experience marked functional deficits but may have difficulty with turning tasks. Studies evaluating turning have focused on individuals in advanced stages of the disease. The purpose of this study was to compare postural control strategies adopted during turning in persons with EPD to those used by healthy control (HC) subjects. Fifteen persons with EPD, diagnosed within 3 years, and 10 HC participated. Participants walked 4 meters and then turned 90°. Dynamic postural control was quantified as the distance between the center of pressure (COP) and the extrapolated center of mass (eCOM). Individuals with EPD demonstrated significantly shorter COP-eCOM distances compared to HC. These findings suggest that dynamic postural control during turning is altered even in the early stages of PD.
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spelling pubmed-33069942012-04-19 Altered Dynamic Postural Control during Step Turning in Persons with Early-Stage Parkinson's Disease Song, Jooeun Sigward, Susan Fisher, Beth Salem, George J. Parkinsons Dis Research Article Persons with early-stage Parkinson's disease (EPD) do not typically experience marked functional deficits but may have difficulty with turning tasks. Studies evaluating turning have focused on individuals in advanced stages of the disease. The purpose of this study was to compare postural control strategies adopted during turning in persons with EPD to those used by healthy control (HC) subjects. Fifteen persons with EPD, diagnosed within 3 years, and 10 HC participated. Participants walked 4 meters and then turned 90°. Dynamic postural control was quantified as the distance between the center of pressure (COP) and the extrapolated center of mass (eCOM). Individuals with EPD demonstrated significantly shorter COP-eCOM distances compared to HC. These findings suggest that dynamic postural control during turning is altered even in the early stages of PD. Hindawi Publishing Corporation 2012 2012-01-29 /pmc/articles/PMC3306994/ /pubmed/22518349 http://dx.doi.org/10.1155/2012/386962 Text en Copyright © 2012 Jooeun Song et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Song, Jooeun
Sigward, Susan
Fisher, Beth
Salem, George J.
Altered Dynamic Postural Control during Step Turning in Persons with Early-Stage Parkinson's Disease
title Altered Dynamic Postural Control during Step Turning in Persons with Early-Stage Parkinson's Disease
title_full Altered Dynamic Postural Control during Step Turning in Persons with Early-Stage Parkinson's Disease
title_fullStr Altered Dynamic Postural Control during Step Turning in Persons with Early-Stage Parkinson's Disease
title_full_unstemmed Altered Dynamic Postural Control during Step Turning in Persons with Early-Stage Parkinson's Disease
title_short Altered Dynamic Postural Control during Step Turning in Persons with Early-Stage Parkinson's Disease
title_sort altered dynamic postural control during step turning in persons with early-stage parkinson's disease
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3306994/
https://www.ncbi.nlm.nih.gov/pubmed/22518349
http://dx.doi.org/10.1155/2012/386962
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AT fisherbeth altereddynamicposturalcontrolduringstepturninginpersonswithearlystageparkinsonsdisease
AT salemgeorgej altereddynamicposturalcontrolduringstepturninginpersonswithearlystageparkinsonsdisease

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