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Effects of muscle relaxation on sustained contraction of ipsilateral remote muscle
The objective of this study was to clarify the temporal change of muscle activity during relaxation of ipsilateral remote muscles. While participants maintained a constant right wrist extensor isometric force, they dorsiflexed the ipsilateral ankle from resting position or relaxed from dorsiflexed p...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley & Sons, Ltd
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4673648/ https://www.ncbi.nlm.nih.gov/pubmed/26611464 http://dx.doi.org/10.14814/phy2.12620 |
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author | Kato, Kouki Watanabe, Tasuku Kanosue, Kazuyuki |
author_facet | Kato, Kouki Watanabe, Tasuku Kanosue, Kazuyuki |
author_sort | Kato, Kouki |
collection | PubMed |
description | The objective of this study was to clarify the temporal change of muscle activity during relaxation of ipsilateral remote muscles. While participants maintained a constant right wrist extensor isometric force, they dorsiflexed the ipsilateral ankle from resting position or relaxed from dorsiflexed position in response to an audio signal. The wrist extensor force magnitude increased in the 0–400 msec period after the onset of foot contraction compared to that of the resting condition (P < 0.05). On the other hand, wrist extensor force magnitude and electromyographic (EMG) activity decreased in the 0–400 msec period after the onset of ankle dorsiflexion compared to that of the resting condition (P < 0.05). Our findings suggest that foot muscle relaxation induces temporal reduction in hand muscle EMG activity and force magnitude. |
format | Online Article Text |
id | pubmed-4673648 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | John Wiley & Sons, Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-46736482015-12-15 Effects of muscle relaxation on sustained contraction of ipsilateral remote muscle Kato, Kouki Watanabe, Tasuku Kanosue, Kazuyuki Physiol Rep Original Research The objective of this study was to clarify the temporal change of muscle activity during relaxation of ipsilateral remote muscles. While participants maintained a constant right wrist extensor isometric force, they dorsiflexed the ipsilateral ankle from resting position or relaxed from dorsiflexed position in response to an audio signal. The wrist extensor force magnitude increased in the 0–400 msec period after the onset of foot contraction compared to that of the resting condition (P < 0.05). On the other hand, wrist extensor force magnitude and electromyographic (EMG) activity decreased in the 0–400 msec period after the onset of ankle dorsiflexion compared to that of the resting condition (P < 0.05). Our findings suggest that foot muscle relaxation induces temporal reduction in hand muscle EMG activity and force magnitude. John Wiley & Sons, Ltd 2015-11-26 /pmc/articles/PMC4673648/ /pubmed/26611464 http://dx.doi.org/10.14814/phy2.12620 Text en © 2015 The Authors. Physiological Reports published by Wiley Periodicals, Inc. on behalf of the American Physiological Society and The Physiological Society. http://creativecommons.org/licenses/by/4.0/ This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Research Kato, Kouki Watanabe, Tasuku Kanosue, Kazuyuki Effects of muscle relaxation on sustained contraction of ipsilateral remote muscle |
title | Effects of muscle relaxation on sustained contraction of ipsilateral remote muscle |
title_full | Effects of muscle relaxation on sustained contraction of ipsilateral remote muscle |
title_fullStr | Effects of muscle relaxation on sustained contraction of ipsilateral remote muscle |
title_full_unstemmed | Effects of muscle relaxation on sustained contraction of ipsilateral remote muscle |
title_short | Effects of muscle relaxation on sustained contraction of ipsilateral remote muscle |
title_sort | effects of muscle relaxation on sustained contraction of ipsilateral remote muscle |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4673648/ https://www.ncbi.nlm.nih.gov/pubmed/26611464 http://dx.doi.org/10.14814/phy2.12620 |
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