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Electromyographic analysis of trunk and lower extremity muscle activities during pulley-based shoulder exercises performed on stable and unstable surfaces
[Purpose] The aim of the present study was to identify the effects of an unstable support surface (USS) on the activities of trunk and lower extremity muscles during pulley-based shoulder exercise (PBSE). [Subjects] Twenty healthy college students were included in this study. [Methods] Surface EMG w...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Society of Physical Therapy Science
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4305602/ https://www.ncbi.nlm.nih.gov/pubmed/25642041 http://dx.doi.org/10.1589/jpts.27.71 |
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author | Shin, Doochul Cha, Jaeyun Song, Changho |
author_facet | Shin, Doochul Cha, Jaeyun Song, Changho |
author_sort | Shin, Doochul |
collection | PubMed |
description | [Purpose] The aim of the present study was to identify the effects of an unstable support surface (USS) on the activities of trunk and lower extremity muscles during pulley-based shoulder exercise (PBSE). [Subjects] Twenty healthy college students were included in this study. [Methods] Surface EMG was carried out in twenty healthy adult men. The activities of trunk and lower extremity muscles performed during PBSE using a resistance of 14 kg on a stable or unstable support surface were compared. The PBSE included shoulder abduction, adduction, flexion, extension, internal rotation, and external rotation. [Results] On the unstable surface, the rectus abdominis and erector spinae showed significantly less activation during shoulder external rotation, but the extent of activation was not significantly different during other shoulder exercises. The external oblique and rectus femoris showed no significant difference during any shoulder exercises. The tibialis anterior showed significantly greater activation during all shoulder exercises, except flexion and extension. The gastrocnemius showed significantly greater activation during shoulder abduction, extension, and internal rotation. However, during shoulder adduction, flexion, and external rotation, the gastrocnemius showed no significant difference. [Conclusion] The use of USS to increase core stability during PBSE is probably not effective owing to compensatory strategies of the ankle. |
format | Online Article Text |
id | pubmed-4305602 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | The Society of Physical Therapy Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-43056022015-01-30 Electromyographic analysis of trunk and lower extremity muscle activities during pulley-based shoulder exercises performed on stable and unstable surfaces Shin, Doochul Cha, Jaeyun Song, Changho J Phys Ther Sci Original Article [Purpose] The aim of the present study was to identify the effects of an unstable support surface (USS) on the activities of trunk and lower extremity muscles during pulley-based shoulder exercise (PBSE). [Subjects] Twenty healthy college students were included in this study. [Methods] Surface EMG was carried out in twenty healthy adult men. The activities of trunk and lower extremity muscles performed during PBSE using a resistance of 14 kg on a stable or unstable support surface were compared. The PBSE included shoulder abduction, adduction, flexion, extension, internal rotation, and external rotation. [Results] On the unstable surface, the rectus abdominis and erector spinae showed significantly less activation during shoulder external rotation, but the extent of activation was not significantly different during other shoulder exercises. The external oblique and rectus femoris showed no significant difference during any shoulder exercises. The tibialis anterior showed significantly greater activation during all shoulder exercises, except flexion and extension. The gastrocnemius showed significantly greater activation during shoulder abduction, extension, and internal rotation. However, during shoulder adduction, flexion, and external rotation, the gastrocnemius showed no significant difference. [Conclusion] The use of USS to increase core stability during PBSE is probably not effective owing to compensatory strategies of the ankle. The Society of Physical Therapy Science 2015-01-09 2015-01 /pmc/articles/PMC4305602/ /pubmed/25642041 http://dx.doi.org/10.1589/jpts.27.71 Text en 2015©by the Society of Physical Therapy Science http://creativecommons.org/licenses/by-nc-nd/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License. |
spellingShingle | Original Article Shin, Doochul Cha, Jaeyun Song, Changho Electromyographic analysis of trunk and lower extremity muscle activities during pulley-based shoulder exercises performed on stable and unstable surfaces |
title | Electromyographic analysis of trunk and lower extremity muscle activities
during pulley-based shoulder exercises performed on stable and unstable
surfaces |
title_full | Electromyographic analysis of trunk and lower extremity muscle activities
during pulley-based shoulder exercises performed on stable and unstable
surfaces |
title_fullStr | Electromyographic analysis of trunk and lower extremity muscle activities
during pulley-based shoulder exercises performed on stable and unstable
surfaces |
title_full_unstemmed | Electromyographic analysis of trunk and lower extremity muscle activities
during pulley-based shoulder exercises performed on stable and unstable
surfaces |
title_short | Electromyographic analysis of trunk and lower extremity muscle activities
during pulley-based shoulder exercises performed on stable and unstable
surfaces |
title_sort | electromyographic analysis of trunk and lower extremity muscle activities
during pulley-based shoulder exercises performed on stable and unstable
surfaces |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4305602/ https://www.ncbi.nlm.nih.gov/pubmed/25642041 http://dx.doi.org/10.1589/jpts.27.71 |
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