Multiscale dynamics of single-leg standing postural control in chronic ankle instability.

IF 2.5 2区医学 Q2 SPORT SCIENCES

Journal of Sports Sciences Pub Date : 2025-10-05 DOI:10.1080/02640414.2025.2568253

Jingjing Li, Songlin Xiao, Bin Shen, Chuyi Zhang, Zhen Xu, Junhong Zhou, Weijie Fu

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Abstract

This study aimed to investigate postural sway complexity in chronic ankle instability (CAI) in static postural control and its relationship with the duration of ankle instability. 61 participants were recruited, including 35 CAI and 26 healthy controls (HC). Right leg standing balance was assessed in eyes open (EO) and eyes closed (EC) conditions for 20s. Multiscale entropy was used to quantify the complexity of center of pressure fluctuations in the anterior-posterior (AP) and medial-lateral (ML) directions. One-way ANOVA was used to compare the differences in postural sway complexity between the two groups. Compared with HC, the AP (F = 6.812, p = 0.012, η² = 0.133) and ML sway complexity (F = 4.164, p = 0.047, η² = 0.087) in EO condition was significantly lower in CAI group, but not in EC (ML: F = 1.229, p = 0.274, η² = 0.027; AP: F = 2.398, p = 0.129, η² = 0.052). The duration of ankle instability was correlated with ML sway complexity in EC condition in CAI group (r = -0.484, p = 0.023). This indicates that CAIs have poor adaptability to stressors, and multiscale entropy can serve as a potential indicator for identifying impaired postural control with eyes open in CAI.

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慢性踝关节不稳中单腿站立姿势控制的多尺度动力学。

本研究旨在探讨静态姿势控制下慢性踝关节不稳定（CAI）的姿势摇摆复杂性及其与踝关节不稳定持续时间的关系。共招募61名受试者，包括35名CAI和26名健康对照（HC）。在睁眼（EO）和闭眼（EC）状态下评估20s右腿站立平衡。采用多尺度熵量化前后（AP）和中外侧（ML）方向压力波动中心的复杂性。采用单因素方差分析比较两组患者体位摇摆复杂程度的差异。与HC相比，CAI组EO组的AP （F = 6.812, p = 0.012, η2 = 0.133）和ML摇摆复杂性（F = 4.164, p = 0.047, η2 = 0.087）显著低于HC组（ML: F = 1.229, p = 0.274, η2 = 0.027; AP: F = 2.398, p = 0.129, η2 = 0.052）。CAI组EC患者踝关节不稳定持续时间与ML摆动复杂程度相关（r = -0.484, p = 0.023）。这表明CAI对压力源的适应性较差，多尺度熵可以作为识别CAI睁眼姿势控制障碍的潜在指标。

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

Journal of Sports Sciences 社会科学-运动科学

CiteScore

6.30

自引率

2.90%

发文量

147

审稿时长

12 months

期刊介绍： The Journal of Sports Sciences has an international reputation for publishing articles of a high standard and is both Medline and Clarivate Analytics-listed. It publishes research on various aspects of the sports and exercise sciences, including anatomy, biochemistry, biomechanics, performance analysis, physiology, psychology, sports medicine and health, as well as coaching and talent identification, kinanthropometry and other interdisciplinary perspectives. The emphasis of the Journal is on the human sciences, broadly defined and applied to sport and exercise. Besides experimental work in human responses to exercise, the subjects covered will include human responses to technologies such as the design of sports equipment and playing facilities, research in training, selection, performance prediction or modification, and stress reduction or manifestation. Manuscripts considered for publication include those dealing with original investigations of exercise, validation of technological innovations in sport or comprehensive reviews of topics relevant to the scientific study of sport.