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Elucidation of abductor digiti minimi activity in chronic ankle instability

[Purpose] This study aimed to compare the muscle activity around the foot and ankle joints, notably of the abductor digiti minimi, between affected and unaffected sides of individuals with chronic ankle instability. [Participants and Methods] Twelve adult males with chronic ankle instability in one...

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Autores principales: Hyodo, Yutaro, Jiroumaru, Takumi, Kida, Noriyuki, Wachi, Michio, Nomura, Shun, Kuroda, Minoru, Kitagawa, Hikaru, Noguchi, Shinichi, Oka, Yasumasa, Nomura, Teruo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Society of Physical Therapy Science 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8918096/
https://www.ncbi.nlm.nih.gov/pubmed/35291477
http://dx.doi.org/10.1589/jpts.34.242
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author Hyodo, Yutaro
Jiroumaru, Takumi
Kida, Noriyuki
Wachi, Michio
Nomura, Shun
Kuroda, Minoru
Kitagawa, Hikaru
Noguchi, Shinichi
Oka, Yasumasa
Nomura, Teruo
author_facet Hyodo, Yutaro
Jiroumaru, Takumi
Kida, Noriyuki
Wachi, Michio
Nomura, Shun
Kuroda, Minoru
Kitagawa, Hikaru
Noguchi, Shinichi
Oka, Yasumasa
Nomura, Teruo
author_sort Hyodo, Yutaro
collection PubMed
description [Purpose] This study aimed to compare the muscle activity around the foot and ankle joints, notably of the abductor digiti minimi, between affected and unaffected sides of individuals with chronic ankle instability. [Participants and Methods] Twelve adult males with chronic ankle instability in one ankle (age, 27.7 ± 5.4 years; height, 172.5 ± 8.1 cm; weight, 67.5 ± 8.1 kg) were included and underwent surface electromyography assessments in multiple positions on both affected and unaffected sides. Measurements were obtained for eight muscles including the abductor digiti minimi. Each measurement included a 5-s segment of the stable waveform, with the root mean square-processed and normalized to the resting position set to 1. [Results] Abductor digiti minimi activity on the affected side was significantly reduced during maximal toe extension/abduction with both ankle dorsiflexion and plantarflexion. Peroneus longus activity on the affected side was significantly greater during maximal toe extension/abduction with ankle plantarflexion; peroneus longus and tibialis anterior muscle activities were significantly greater on the affected side during maximal toe extension/abduction with ankle dorsiflexion. [Conclusion] In the absence of load, muscle imbalance in the intrinsic and extrinsic muscles of the foot was suggested. However, no significant differences were observed under loading conditions.
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spelling pubmed-89180962022-03-14 Elucidation of abductor digiti minimi activity in chronic ankle instability Hyodo, Yutaro Jiroumaru, Takumi Kida, Noriyuki Wachi, Michio Nomura, Shun Kuroda, Minoru Kitagawa, Hikaru Noguchi, Shinichi Oka, Yasumasa Nomura, Teruo J Phys Ther Sci Original Article [Purpose] This study aimed to compare the muscle activity around the foot and ankle joints, notably of the abductor digiti minimi, between affected and unaffected sides of individuals with chronic ankle instability. [Participants and Methods] Twelve adult males with chronic ankle instability in one ankle (age, 27.7 ± 5.4 years; height, 172.5 ± 8.1 cm; weight, 67.5 ± 8.1 kg) were included and underwent surface electromyography assessments in multiple positions on both affected and unaffected sides. Measurements were obtained for eight muscles including the abductor digiti minimi. Each measurement included a 5-s segment of the stable waveform, with the root mean square-processed and normalized to the resting position set to 1. [Results] Abductor digiti minimi activity on the affected side was significantly reduced during maximal toe extension/abduction with both ankle dorsiflexion and plantarflexion. Peroneus longus activity on the affected side was significantly greater during maximal toe extension/abduction with ankle plantarflexion; peroneus longus and tibialis anterior muscle activities were significantly greater on the affected side during maximal toe extension/abduction with ankle dorsiflexion. [Conclusion] In the absence of load, muscle imbalance in the intrinsic and extrinsic muscles of the foot was suggested. However, no significant differences were observed under loading conditions. The Society of Physical Therapy Science 2022-03-14 2022-03 /pmc/articles/PMC8918096/ /pubmed/35291477 http://dx.doi.org/10.1589/jpts.34.242 Text en 2022©by the Society of Physical Therapy Science. Published by IPEC Inc. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License. (CC-BY-NC-ND 4.0: https://creativecommons.org/licenses/by-nc-nd/4.0/)
spellingShingle Original Article
Hyodo, Yutaro
Jiroumaru, Takumi
Kida, Noriyuki
Wachi, Michio
Nomura, Shun
Kuroda, Minoru
Kitagawa, Hikaru
Noguchi, Shinichi
Oka, Yasumasa
Nomura, Teruo
Elucidation of abductor digiti minimi activity in chronic ankle instability
title Elucidation of abductor digiti minimi activity in chronic ankle instability
title_full Elucidation of abductor digiti minimi activity in chronic ankle instability
title_fullStr Elucidation of abductor digiti minimi activity in chronic ankle instability
title_full_unstemmed Elucidation of abductor digiti minimi activity in chronic ankle instability
title_short Elucidation of abductor digiti minimi activity in chronic ankle instability
title_sort elucidation of abductor digiti minimi activity in chronic ankle instability
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8918096/
https://www.ncbi.nlm.nih.gov/pubmed/35291477
http://dx.doi.org/10.1589/jpts.34.242
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