Morphological and Functional Characteristics of the Peroneus Muscles in Patients with Lateral Ankle Sprain: An Ultrasound-Based Study

<i>Background and Objectives</i>: The effectiveness of multiple ultrasound evaluations of the peroneus muscles morphology, including muscle cross-sectional area (CSA) and connective tissue, after lateral ankle sprain (LAS) is unknown. This study aimed to measure the peroneus muscles afte...

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Main Authors: Satoshi Arima, Noriaki Maeda, Makoto Komiya, Tsubasa Tashiro, Kazuki Fukui, Kazuki Kaneda, Mitsuhiro Yoshimi, Yukio Urabe
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Medicina
Subjects:
Online Access:https://www.mdpi.com/1648-9144/58/1/70
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author Satoshi Arima
Noriaki Maeda
Makoto Komiya
Tsubasa Tashiro
Kazuki Fukui
Kazuki Kaneda
Mitsuhiro Yoshimi
Yukio Urabe
author_facet Satoshi Arima
Noriaki Maeda
Makoto Komiya
Tsubasa Tashiro
Kazuki Fukui
Kazuki Kaneda
Mitsuhiro Yoshimi
Yukio Urabe
author_sort Satoshi Arima
collection DOAJ
description <i>Background and Objectives</i>: The effectiveness of multiple ultrasound evaluations of the peroneus muscles morphology, including muscle cross-sectional area (CSA) and connective tissue, after lateral ankle sprain (LAS) is unknown. This study aimed to measure the peroneus muscles after LAS at three points, adding distal 75% to the conventional measurement points, in order to obtain a detailed understanding of the post-injury morphology and to propose a new evaluation index of the peroneus muscles for multiple LAS. <i>Materials and Methods</i>: Participants with and without LAS (LAS and control groups, 16 each) were recruited. The muscle cross-sectional area (CSA) and muscle echogenicity were measured using a B-mode ultrasound system at 25%, 50%, and 75% proximal to the line connecting the fibular head to the lateral malleolus. The ankle evertor strength was measured using a handheld dynamometer. Simultaneously, the peroneus longus (PL) and peroneus brevis (PB) muscle activities were measured using surface electromyography. Measurements for the LAS side, non-LAS side, and control leg were performed separately. <i>Results</i>: The CSA was significantly higher at 75% on the LAS side than on the non-LAS side and in the control leg. Muscle echogenicity of the LAS side at 75% was significantly lower than that of the non-LAS side and the control leg. Muscle activity of the PL was significantly lower and the PB was higher on the LAS side than on the non-LAS side and in the control leg. <i>Conclusions</i>: The PL was less active than the PB, while the PB was found to be overactive, suggesting that PB hypertrophy occurs due to an increase in the percentage of muscle fibers and a decrease in the connective tissue. Therefore, it is necessary to evaluate the condition of the PL and PB separately after LAS.
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spelling doaj.art-15e1895d1e6a4bcda80a97f86c2e67062023-11-23T14:36:26ZengMDPI AGMedicina1010-660X1648-91442022-01-015817010.3390/medicina58010070Morphological and Functional Characteristics of the Peroneus Muscles in Patients with Lateral Ankle Sprain: An Ultrasound-Based StudySatoshi Arima0Noriaki Maeda1Makoto Komiya2Tsubasa Tashiro3Kazuki Fukui4Kazuki Kaneda5Mitsuhiro Yoshimi6Yukio Urabe7Department of Sports Rehabilitation, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, JapanDepartment of Sports Rehabilitation, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, JapanDepartment of Sports Rehabilitation, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, JapanDepartment of Sports Rehabilitation, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, JapanDepartment of Sports Rehabilitation, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, JapanDepartment of Sports Rehabilitation, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, JapanDepartment of Sports Rehabilitation, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, JapanDepartment of Sports Rehabilitation, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan<i>Background and Objectives</i>: The effectiveness of multiple ultrasound evaluations of the peroneus muscles morphology, including muscle cross-sectional area (CSA) and connective tissue, after lateral ankle sprain (LAS) is unknown. This study aimed to measure the peroneus muscles after LAS at three points, adding distal 75% to the conventional measurement points, in order to obtain a detailed understanding of the post-injury morphology and to propose a new evaluation index of the peroneus muscles for multiple LAS. <i>Materials and Methods</i>: Participants with and without LAS (LAS and control groups, 16 each) were recruited. The muscle cross-sectional area (CSA) and muscle echogenicity were measured using a B-mode ultrasound system at 25%, 50%, and 75% proximal to the line connecting the fibular head to the lateral malleolus. The ankle evertor strength was measured using a handheld dynamometer. Simultaneously, the peroneus longus (PL) and peroneus brevis (PB) muscle activities were measured using surface electromyography. Measurements for the LAS side, non-LAS side, and control leg were performed separately. <i>Results</i>: The CSA was significantly higher at 75% on the LAS side than on the non-LAS side and in the control leg. Muscle echogenicity of the LAS side at 75% was significantly lower than that of the non-LAS side and the control leg. Muscle activity of the PL was significantly lower and the PB was higher on the LAS side than on the non-LAS side and in the control leg. <i>Conclusions</i>: The PL was less active than the PB, while the PB was found to be overactive, suggesting that PB hypertrophy occurs due to an increase in the percentage of muscle fibers and a decrease in the connective tissue. Therefore, it is necessary to evaluate the condition of the PL and PB separately after LAS.https://www.mdpi.com/1648-9144/58/1/70ankle evertor strengthlateral ankle sprainperoneus brevisperoneus longusperoneus musclessports injury
spellingShingle Satoshi Arima
Noriaki Maeda
Makoto Komiya
Tsubasa Tashiro
Kazuki Fukui
Kazuki Kaneda
Mitsuhiro Yoshimi
Yukio Urabe
Morphological and Functional Characteristics of the Peroneus Muscles in Patients with Lateral Ankle Sprain: An Ultrasound-Based Study
Medicina
ankle evertor strength
lateral ankle sprain
peroneus brevis
peroneus longus
peroneus muscles
sports injury
title Morphological and Functional Characteristics of the Peroneus Muscles in Patients with Lateral Ankle Sprain: An Ultrasound-Based Study
title_full Morphological and Functional Characteristics of the Peroneus Muscles in Patients with Lateral Ankle Sprain: An Ultrasound-Based Study
title_fullStr Morphological and Functional Characteristics of the Peroneus Muscles in Patients with Lateral Ankle Sprain: An Ultrasound-Based Study
title_full_unstemmed Morphological and Functional Characteristics of the Peroneus Muscles in Patients with Lateral Ankle Sprain: An Ultrasound-Based Study
title_short Morphological and Functional Characteristics of the Peroneus Muscles in Patients with Lateral Ankle Sprain: An Ultrasound-Based Study
title_sort morphological and functional characteristics of the peroneus muscles in patients with lateral ankle sprain an ultrasound based study
topic ankle evertor strength
lateral ankle sprain
peroneus brevis
peroneus longus
peroneus muscles
sports injury
url https://www.mdpi.com/1648-9144/58/1/70
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