Activities of the intrinsic muscles of the foot and lower leg during a single-leg stance and drop landing in individuals with chronic ankle instability

IF 2.2 3区医学 Q1 REHABILITATION

Physical Therapy in Sport Pub Date : 2025-05-08 DOI:10.1016/j.ptsp.2025.05.003

Takumi Okunuki , Ryusei Yamaguchi , Kazuki Wakamiya , Toshihiro Maemichi , Zijian Liu , Yuki Ogawa , Yusuke Kobayashi , Hideaki Nagamoto , Takuma Hoshiba , Tsukasa Kumai

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引用次数: 0

Abstract

Objectives

The aim of this study was to compare intrinsic foot muscle activity during single-leg standing and single-leg drop landing between participants with and without chronic ankle instability.

Design

A cross-sectional study.

Setting

Laboratory.

Participants

Twelve participants with chronic ankle instability and eleven control participants.

Main outcome measures

The main outcomes were the muscle activities of the abductor hallucis, abductor digiti minimi, peroneus longus, and soleus muscles and the center of pressure during single-leg standing and single-leg drop landing.

Results

Participants with chronic ankle stability showed increased soleus muscle activity during single-leg standing with eyes closed and after single-led drop landing compared with that of controls. In the chronic ankle instability group, lower Cumberland Ankle Instability Tool scores were associated with reduced abductor digit minimi muscle activity during landing. No significant differences were found in other outcomes.

Conclusions

Reduced abductor digit minimi muscle activity may be associated with greater severity of chronic ankle instability. Increased soleus muscle activity in individuals with chronic ankle instability may serve as a compensatory mechanism for other impairments during single-leg standing with eyes closed and single-leg drop landing tasks.

查看原文本刊更多论文

慢性踝关节不稳定患者单腿站立和落地时足部和小腿固有肌肉的活动

目的本研究的目的是比较有和没有慢性踝关节不稳定的参与者在单腿站立和单腿落地时的内在足部肌肉活动。设计：横断面研究：12名慢性踝关节不稳定患者和11名对照患者。主要观察指标为单腿站立和单腿落点时外展幻觉肌、小指外展肌、腓骨长肌和比目鱼肌的肌肉活动和压力中心。结果与对照组相比，慢性踝关节稳定性患者在闭眼单腿站立和单导落下后比目鱼肌活动增加。在慢性踝关节不稳定组中，较低的Cumberland踝关节不稳定工具评分与着落时外展手指最小肌活动减少有关。其他结果无显著差异。结论外展趾小肌活动减少可能与慢性踝关节不稳定的严重程度有关。慢性踝关节不稳定患者的比目鱼肌活动增加可能作为闭眼单腿站立和单腿落地任务中其他损伤的代偿机制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physical Therapy in Sport 医学-康复医学

CiteScore

4.50

自引率

8.30%

发文量

125

审稿时长

39 days

期刊介绍： Physical Therapy in Sport is an international peer-reviewed journal that provides a forum for the publication of research and clinical practice material relevant to the healthcare professions involved in sports and exercise medicine, and rehabilitation. The journal publishes material that is indispensable for day-to-day practice and continuing professional development. Physical Therapy in Sport covers topics dealing with the diagnosis, treatment, and prevention of injuries, as well as more general areas of sports and exercise medicine and related sports science. The journal publishes original research, case studies, reviews, masterclasses, papers on clinical approaches, and book reviews, as well as occasional reports from conferences. Papers are double-blind peer-reviewed by our international advisory board and other international experts, and submissions from a broad range of disciplines are actively encouraged.