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Contra-Lateral Unintended Upper Arm Movement during Unimanual Tasks in Children with Cerebral Palsy

PURPOSE: To characterize associated reactions (ARs) in the contralateral arm across multiple muscles during unimanual tasks and to identify factors related to ARs in children with cerebral palsy (CP). MATERIALS AND METHODS: This was a prospective, cross-sectional study of 35 children with CP. The ex...

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Autores principales: Kim, Seung Ki, Park, Han Kyul, Park, Eun Sook
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Yonsei University College of Medicine 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7044693/
https://www.ncbi.nlm.nih.gov/pubmed/32102124
http://dx.doi.org/10.3349/ymj.2020.61.3.235
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author Kim, Seung Ki
Park, Han Kyul
Park, Eun Sook
author_facet Kim, Seung Ki
Park, Han Kyul
Park, Eun Sook
author_sort Kim, Seung Ki
collection PubMed
description PURPOSE: To characterize associated reactions (ARs) in the contralateral arm across multiple muscles during unimanual tasks and to identify factors related to ARs in children with cerebral palsy (CP). MATERIALS AND METHODS: This was a prospective, cross-sectional study of 35 children with CP. The extent of ARs of the contra-lateral, non-task hand was assessed while performing three unimanual tasks (opening and clenching the fist, a finger opposition task, and tapping fingers). The occurrence of ARs in each trial was evaluated separately for each task using a four-point scale (total scores ranged from 0 to 12). Surface electromyography (SEMG) was used to measure the firing activity of the muscles of the opposite arm during the task. The Manual Ability Classification System and Melbourne Assessment 2 (MA-2) were used to evaluate upper limb function. RESULTS: AR scores were higher in the more-affected limb than in the less-affected limb. SEMG data on the non-task hand showed motor overflow up to the elbow muscles in the more-affected limb. Root mean square ratios of EMG signals were significantly higher in children with ARs than in children without ARs. Multiple regression analysis showed both age and MA-2 to be significant factors related to ARs in the more-affected limb. CONCLUSION: Children with visible ARs showed motor overflow in the non-task limb during unimanual hand tasks. Age and upper limb function were significantly related to the extent of ARs in the more-affected limb of children with CP.
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spelling pubmed-70446932020-03-06 Contra-Lateral Unintended Upper Arm Movement during Unimanual Tasks in Children with Cerebral Palsy Kim, Seung Ki Park, Han Kyul Park, Eun Sook Yonsei Med J Original Article PURPOSE: To characterize associated reactions (ARs) in the contralateral arm across multiple muscles during unimanual tasks and to identify factors related to ARs in children with cerebral palsy (CP). MATERIALS AND METHODS: This was a prospective, cross-sectional study of 35 children with CP. The extent of ARs of the contra-lateral, non-task hand was assessed while performing three unimanual tasks (opening and clenching the fist, a finger opposition task, and tapping fingers). The occurrence of ARs in each trial was evaluated separately for each task using a four-point scale (total scores ranged from 0 to 12). Surface electromyography (SEMG) was used to measure the firing activity of the muscles of the opposite arm during the task. The Manual Ability Classification System and Melbourne Assessment 2 (MA-2) were used to evaluate upper limb function. RESULTS: AR scores were higher in the more-affected limb than in the less-affected limb. SEMG data on the non-task hand showed motor overflow up to the elbow muscles in the more-affected limb. Root mean square ratios of EMG signals were significantly higher in children with ARs than in children without ARs. Multiple regression analysis showed both age and MA-2 to be significant factors related to ARs in the more-affected limb. CONCLUSION: Children with visible ARs showed motor overflow in the non-task limb during unimanual hand tasks. Age and upper limb function were significantly related to the extent of ARs in the more-affected limb of children with CP. Yonsei University College of Medicine 2020-03-01 2020-02-20 /pmc/articles/PMC7044693/ /pubmed/32102124 http://dx.doi.org/10.3349/ymj.2020.61.3.235 Text en © Copyright: Yonsei University College of Medicine 2020 https://creativecommons.org/licenses/by-nc/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Kim, Seung Ki
Park, Han Kyul
Park, Eun Sook
Contra-Lateral Unintended Upper Arm Movement during Unimanual Tasks in Children with Cerebral Palsy
title Contra-Lateral Unintended Upper Arm Movement during Unimanual Tasks in Children with Cerebral Palsy
title_full Contra-Lateral Unintended Upper Arm Movement during Unimanual Tasks in Children with Cerebral Palsy
title_fullStr Contra-Lateral Unintended Upper Arm Movement during Unimanual Tasks in Children with Cerebral Palsy
title_full_unstemmed Contra-Lateral Unintended Upper Arm Movement during Unimanual Tasks in Children with Cerebral Palsy
title_short Contra-Lateral Unintended Upper Arm Movement during Unimanual Tasks in Children with Cerebral Palsy
title_sort contra-lateral unintended upper arm movement during unimanual tasks in children with cerebral palsy
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7044693/
https://www.ncbi.nlm.nih.gov/pubmed/32102124
http://dx.doi.org/10.3349/ymj.2020.61.3.235
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