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Precision grip control while walking down a step in children with unilateral cerebral palsy

AIM: To compare grip force (GF) and load force (LF) coordination while walking down a step between children with unilateral cerebral palsy (UCP) and typically developing (TD) children. METHODS: Twenty-five children with UCP (age 9.3±1.7 y) and 25 TD controls (age 9.4±2.1 y) walked down a step while...

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Autores principales: Ebner-Karestinos, Daniela, Flament, Benoît, Arnould, Carlyne, Thonnard, Jean-Louis, Bleyenheuft, Yannick
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5794097/
https://www.ncbi.nlm.nih.gov/pubmed/29390012
http://dx.doi.org/10.1371/journal.pone.0191684
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author Ebner-Karestinos, Daniela
Flament, Benoît
Arnould, Carlyne
Thonnard, Jean-Louis
Bleyenheuft, Yannick
author_facet Ebner-Karestinos, Daniela
Flament, Benoît
Arnould, Carlyne
Thonnard, Jean-Louis
Bleyenheuft, Yannick
author_sort Ebner-Karestinos, Daniela
collection PubMed
description AIM: To compare grip force (GF) and load force (LF) coordination while walking down a step between children with unilateral cerebral palsy (UCP) and typically developing (TD) children. METHODS: Twenty-five children with UCP (age 9.3±1.7 y) and 25 TD controls (age 9.4±2.1 y) walked down a step while holding a grip-lift manipulandum. Dynamic and temporal variables were analyzed. The maximum voluntary contraction (MVC) was also assessed. RESULTS: The temporal course was perturbed mainly in the more affected hand of children with UCP when compared to TD children because the increases in GF and LF onset occurred in a reversed order. Compared with the TD controls, the children with UCP presented higher LF values on both hands and a higher GF on the less affected hand. In children with UCP, the GF to LF adaptation was adequate on the less affected hand but overestimated on the more affected hand. Furthermore, children with UCP presented a lower MVC in the more affected hand, leading to a higher percentage of MVC used during the task. INTERPRETATION: Our findings highlight an anticipatory control of precision grip during a stepping down task in children with UCP that is adequate for the less affected hand but altered for the more affected hand.
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spelling pubmed-57940972018-02-16 Precision grip control while walking down a step in children with unilateral cerebral palsy Ebner-Karestinos, Daniela Flament, Benoît Arnould, Carlyne Thonnard, Jean-Louis Bleyenheuft, Yannick PLoS One Research Article AIM: To compare grip force (GF) and load force (LF) coordination while walking down a step between children with unilateral cerebral palsy (UCP) and typically developing (TD) children. METHODS: Twenty-five children with UCP (age 9.3±1.7 y) and 25 TD controls (age 9.4±2.1 y) walked down a step while holding a grip-lift manipulandum. Dynamic and temporal variables were analyzed. The maximum voluntary contraction (MVC) was also assessed. RESULTS: The temporal course was perturbed mainly in the more affected hand of children with UCP when compared to TD children because the increases in GF and LF onset occurred in a reversed order. Compared with the TD controls, the children with UCP presented higher LF values on both hands and a higher GF on the less affected hand. In children with UCP, the GF to LF adaptation was adequate on the less affected hand but overestimated on the more affected hand. Furthermore, children with UCP presented a lower MVC in the more affected hand, leading to a higher percentage of MVC used during the task. INTERPRETATION: Our findings highlight an anticipatory control of precision grip during a stepping down task in children with UCP that is adequate for the less affected hand but altered for the more affected hand. Public Library of Science 2018-02-01 /pmc/articles/PMC5794097/ /pubmed/29390012 http://dx.doi.org/10.1371/journal.pone.0191684 Text en © 2018 Ebner-Karestinos 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
Ebner-Karestinos, Daniela
Flament, Benoît
Arnould, Carlyne
Thonnard, Jean-Louis
Bleyenheuft, Yannick
Precision grip control while walking down a step in children with unilateral cerebral palsy
title Precision grip control while walking down a step in children with unilateral cerebral palsy
title_full Precision grip control while walking down a step in children with unilateral cerebral palsy
title_fullStr Precision grip control while walking down a step in children with unilateral cerebral palsy
title_full_unstemmed Precision grip control while walking down a step in children with unilateral cerebral palsy
title_short Precision grip control while walking down a step in children with unilateral cerebral palsy
title_sort precision grip control while walking down a step in children with unilateral cerebral palsy
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5794097/
https://www.ncbi.nlm.nih.gov/pubmed/29390012
http://dx.doi.org/10.1371/journal.pone.0191684
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