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An explorative, cross-sectional study into abnormal muscular coupling during reach in chronic stroke patients
BACKGROUND: In many stroke patients arm function is limited, which can be related to an abnormal coupling between shoulder and elbow joints. The extent to which this can be translated to activities of daily life (ADL), in terms of muscle activation during ADL-like movements, is rather unknown. There...
Autores principales: | , , , , , |
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Formato: | Texto |
Lenguaje: | English |
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BioMed Central
2010
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2850340/ https://www.ncbi.nlm.nih.gov/pubmed/20233402 http://dx.doi.org/10.1186/1743-0003-7-14 |
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author | Prange, Gerdienke B Jannink, Michiel JA Stienen, Arno HA van der Kooij, Herman IJzerman, Maarten J Hermens, Hermie J |
author_facet | Prange, Gerdienke B Jannink, Michiel JA Stienen, Arno HA van der Kooij, Herman IJzerman, Maarten J Hermens, Hermie J |
author_sort | Prange, Gerdienke B |
collection | PubMed |
description | BACKGROUND: In many stroke patients arm function is limited, which can be related to an abnormal coupling between shoulder and elbow joints. The extent to which this can be translated to activities of daily life (ADL), in terms of muscle activation during ADL-like movements, is rather unknown. Therefore, the present study examined the occurrence of abnormal coupling on functional, ADL-like reaching movements of chronic stroke patients by comparison with healthy persons. METHODS: Upward multi-joint reaching movements (20 repetitions at a self-selected speed to resemble ADL) were compared in two conditions: once facilitated by arm weight compensation and once resisted to provoke a potential abnormal coupling. Changes in movement performance (joint angles) and muscle activation (amplitude of activity and co-activation) between conditions were compared between healthy persons and stroke patients using a repeated measures ANOVA. RESULTS: The present study showed slight changes in joint excursion and muscle activation of stroke patients due to shoulder elevation resistance during functional reach. Remarkably, in healthy persons similar changes were observed. Even the results of a sub-group of the more impaired stroke patients did not point to an abnormal coupling between shoulder elevation and elbow flexion during functional reach. CONCLUSIONS: The present findings suggest that in mildly and moderately affected chronic stroke patients ADL-like arm movements are not substantially affected by abnormal synergistic coupling. In this case, it is implied that other major contributors to limitations in functional use of the arm should be identified and targeted individually in rehabilitation, to improve use of the arm in activities of daily living. |
format | Text |
id | pubmed-2850340 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2010 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-28503402010-04-07 An explorative, cross-sectional study into abnormal muscular coupling during reach in chronic stroke patients Prange, Gerdienke B Jannink, Michiel JA Stienen, Arno HA van der Kooij, Herman IJzerman, Maarten J Hermens, Hermie J J Neuroeng Rehabil Research BACKGROUND: In many stroke patients arm function is limited, which can be related to an abnormal coupling between shoulder and elbow joints. The extent to which this can be translated to activities of daily life (ADL), in terms of muscle activation during ADL-like movements, is rather unknown. Therefore, the present study examined the occurrence of abnormal coupling on functional, ADL-like reaching movements of chronic stroke patients by comparison with healthy persons. METHODS: Upward multi-joint reaching movements (20 repetitions at a self-selected speed to resemble ADL) were compared in two conditions: once facilitated by arm weight compensation and once resisted to provoke a potential abnormal coupling. Changes in movement performance (joint angles) and muscle activation (amplitude of activity and co-activation) between conditions were compared between healthy persons and stroke patients using a repeated measures ANOVA. RESULTS: The present study showed slight changes in joint excursion and muscle activation of stroke patients due to shoulder elevation resistance during functional reach. Remarkably, in healthy persons similar changes were observed. Even the results of a sub-group of the more impaired stroke patients did not point to an abnormal coupling between shoulder elevation and elbow flexion during functional reach. CONCLUSIONS: The present findings suggest that in mildly and moderately affected chronic stroke patients ADL-like arm movements are not substantially affected by abnormal synergistic coupling. In this case, it is implied that other major contributors to limitations in functional use of the arm should be identified and targeted individually in rehabilitation, to improve use of the arm in activities of daily living. BioMed Central 2010-03-16 /pmc/articles/PMC2850340/ /pubmed/20233402 http://dx.doi.org/10.1186/1743-0003-7-14 Text en Copyright ©2010 Prange et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Prange, Gerdienke B Jannink, Michiel JA Stienen, Arno HA van der Kooij, Herman IJzerman, Maarten J Hermens, Hermie J An explorative, cross-sectional study into abnormal muscular coupling during reach in chronic stroke patients |
title | An explorative, cross-sectional study into abnormal muscular coupling during reach in chronic stroke patients |
title_full | An explorative, cross-sectional study into abnormal muscular coupling during reach in chronic stroke patients |
title_fullStr | An explorative, cross-sectional study into abnormal muscular coupling during reach in chronic stroke patients |
title_full_unstemmed | An explorative, cross-sectional study into abnormal muscular coupling during reach in chronic stroke patients |
title_short | An explorative, cross-sectional study into abnormal muscular coupling during reach in chronic stroke patients |
title_sort | explorative, cross-sectional study into abnormal muscular coupling during reach in chronic stroke patients |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2850340/ https://www.ncbi.nlm.nih.gov/pubmed/20233402 http://dx.doi.org/10.1186/1743-0003-7-14 |
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