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Central Tendon Injury Impairs Regional Neuromuscular Activation of the Rectus Femoris Muscle

We aimed to uncover which rectus femoris strain injury types affect regional activation within the rectus femoris. The rectus femoris has a region-specific functional role; the proximal region of the rectus femoris contributes more than the middle and distal regions during hip flexion. Although a hi...

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Autores principales: Kubo, Yoshiaki, Watanabe, Kohei, Nakazato, Koichi, Koyama, Koji, Hiranuma, Kenji
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8620181/
https://www.ncbi.nlm.nih.gov/pubmed/34822350
http://dx.doi.org/10.3390/sports9110150
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author Kubo, Yoshiaki
Watanabe, Kohei
Nakazato, Koichi
Koyama, Koji
Hiranuma, Kenji
author_facet Kubo, Yoshiaki
Watanabe, Kohei
Nakazato, Koichi
Koyama, Koji
Hiranuma, Kenji
author_sort Kubo, Yoshiaki
collection PubMed
description We aimed to uncover which rectus femoris strain injury types affect regional activation within the rectus femoris. The rectus femoris has a region-specific functional role; the proximal region of the rectus femoris contributes more than the middle and distal regions during hip flexion. Although a history of strain injury modifies the region-specific functional role within the rectus femoris, it was not obvious which rectus femoris strain injury types affect regional activation within it. We studied 12 soccer players with a history of rectus femoris strain injury. Injury data were obtained from a questionnaire survey and magnetic resonance imaging. To confirm the region-specific functional role of the rectus femoris, surface multichannel electromyographic signals were recorded. Accordingly, eight legs had a history of central tendon injury, four had a history of myofascial junction injury, and four had a healed strain injury. When the injury was limited to the central tendon, the region-specific functional role disappeared. The region-specific functional role was confirmed when the injury was outside the central part. The neuromuscular function was also inhibited when the longitudinal range of the injured region was long. Our findings suggest that a central tendon injury with a long injury length impairs regional neuromuscular activation of the rectus femoris muscle.
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spelling pubmed-86201812021-11-27 Central Tendon Injury Impairs Regional Neuromuscular Activation of the Rectus Femoris Muscle Kubo, Yoshiaki Watanabe, Kohei Nakazato, Koichi Koyama, Koji Hiranuma, Kenji Sports (Basel) Article We aimed to uncover which rectus femoris strain injury types affect regional activation within the rectus femoris. The rectus femoris has a region-specific functional role; the proximal region of the rectus femoris contributes more than the middle and distal regions during hip flexion. Although a history of strain injury modifies the region-specific functional role within the rectus femoris, it was not obvious which rectus femoris strain injury types affect regional activation within it. We studied 12 soccer players with a history of rectus femoris strain injury. Injury data were obtained from a questionnaire survey and magnetic resonance imaging. To confirm the region-specific functional role of the rectus femoris, surface multichannel electromyographic signals were recorded. Accordingly, eight legs had a history of central tendon injury, four had a history of myofascial junction injury, and four had a healed strain injury. When the injury was limited to the central tendon, the region-specific functional role disappeared. The region-specific functional role was confirmed when the injury was outside the central part. The neuromuscular function was also inhibited when the longitudinal range of the injured region was long. Our findings suggest that a central tendon injury with a long injury length impairs regional neuromuscular activation of the rectus femoris muscle. MDPI 2021-10-27 /pmc/articles/PMC8620181/ /pubmed/34822350 http://dx.doi.org/10.3390/sports9110150 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kubo, Yoshiaki
Watanabe, Kohei
Nakazato, Koichi
Koyama, Koji
Hiranuma, Kenji
Central Tendon Injury Impairs Regional Neuromuscular Activation of the Rectus Femoris Muscle
title Central Tendon Injury Impairs Regional Neuromuscular Activation of the Rectus Femoris Muscle
title_full Central Tendon Injury Impairs Regional Neuromuscular Activation of the Rectus Femoris Muscle
title_fullStr Central Tendon Injury Impairs Regional Neuromuscular Activation of the Rectus Femoris Muscle
title_full_unstemmed Central Tendon Injury Impairs Regional Neuromuscular Activation of the Rectus Femoris Muscle
title_short Central Tendon Injury Impairs Regional Neuromuscular Activation of the Rectus Femoris Muscle
title_sort central tendon injury impairs regional neuromuscular activation of the rectus femoris muscle
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8620181/
https://www.ncbi.nlm.nih.gov/pubmed/34822350
http://dx.doi.org/10.3390/sports9110150
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