Toe-out landing reduces anterior talofibular ligament strain while maintains calcaneofibular ligament strain in people with chronic ankle instability.

IF 9.7 1区医学 Q1 HOSPITALITY, LEISURE, SPORT & TOURISM

Journal of Sport and Health Science Pub Date : 2025-02-26 DOI:10.1016/j.jshs.2025.101035

Xiaoxue Zhu, Feng Wei, Simin Li, Teng Zhang, Peixin Shen, Daniel Tp Fong, Qipeng Song

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引用次数: 0

Abstract

Background: The anterior talofibular ligament (ATFL) and the calcaneofibular ligament (CFL) are vulnerable to be torn or ruptured during lateral ankle sprain (LAS), especially in people with chronic ankle instability (CAI). This study aims to determine whether landing with a larger toe-out angle would influence ATFL and CFL strains in people with CAI, aiming to contribute to the development of effective landing strategies to reduce LAS risk.

Methods: Thirty participants with CAI (22 males and 8 females, age: 21.6 ± 1.5 years, height: 175.3 ± 7.1 cm, body mass: 70.8 ± 7.1 kg, mean ± SD) were recruited. Each participant landed on a specialized trap-door device with their unaffected limbs on a support platform and their affected limbs on a movable platform, which could be flipped 24° inward and 15° forward to mimic LAS conditions. Two landing conditions were tested-i.e., natural landing (NL, with natural toe-out angle at landing) and toe-out landing (TL, with toe-out angle increased to over 150% of that under the NL conditions). Kinematic data were captured using a 12-camera motion analysis system, and ATFL and CFL strains were calculated using a 3D rigid-body foot model. Paired sample t tests and Pearson's correlations were used to analyze data.

Results: Compared to NL conditions, ATFL strain decreased (p < 0.001, d = 2.42) while CFL strain remained unchanged (p = 0.229, d = 0.09) under TL conditions. The toe-out angle was negatively and strongly correlated with ATFL strain (r = -0.743, p < 0.001) but not with CFL strain (r = 0.153, p = 0.251). Compared to NL conditions, participants exhibit a lower ankle inversion angle (p < 0.001, d = 0.494), a higher plantarflexion angle (p < 0.001, d = 1.101), and no significant difference in external rotation angle (p = 0.571, d = 0.133) under TL conditions.

Conclusion: Toe-out landing may reduce ATFL strain while maintaining CFL strain in people with CAI, thereby reducing the risk of LAS.

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背景：距骨胫骨前韧带（ATFL）和小腿胫骨韧带（CFL）在外侧踝关节扭伤（LAS）时容易撕裂或断裂，尤其是慢性踝关节不稳定（CAI）患者。本研究旨在确定脚尖外展角度较大的着地方式是否会影响 CAI 患者的 ATFL 和 CFL 应变，从而帮助开发有效的着地策略以降低 LAS 风险：招募了 30 名 CAI 患者（22 名男性和 8 名女性，年龄：21.6 ± 1.5 岁，身高：175.3 ± 7.1 厘米，体重：70.8 ± 7.1 千克，平均 ± SD）。每位受试者都在一个专门的活门装置上着地，未受影响的肢体位于支撑平台上，受影响的肢体位于活动平台上，活动平台可向内翻转 24°，向前翻转 15°，以模拟 LAS 条件。测试了两种着陆条件，即自然着陆（NL，着陆时脚趾自然伸出的角度）和脚趾伸出着陆（TL，脚趾伸出的角度增加到 NL 条件下的 150% 以上）。运动数据由 12 个摄像头的运动分析系统采集，ATFL 和 CFL 应变由三维刚体足部模型计算。数据分析采用了配对样本 t 检验和皮尔逊相关性检验：与 NL 条件相比，TL 条件下 ATFL 应变降低（p < 0.001，d = 2.42），而 CFL 应变保持不变（p = 0.229，d = 0.09）。趾外角与 ATFL 应变呈强烈负相关（r = -0.743，p <0.001），但与 CFL 应变无关（r = 0.153，p = 0.251）。与 NL 条件相比，参与者在 TL 条件下表现出较低的踝关节内翻角（p < 0.001，d = 0.494）、较高的跖屈角（p < 0.001，d = 1.101），外旋角无显著差异（p = 0.571，d = 0.133）：结论：脚尖向外着地可在保持CFL应变的同时减少CAI患者的ATFL应变，从而降低LAS风险。

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 Sport and Health Science SPORT SCIENCES-

CiteScore

18.30

自引率

1.70%

发文量

101

审稿时长

22 weeks

期刊介绍： The Journal of Sport and Health Science (JSHS) is an international, multidisciplinary journal that aims to advance the fields of sport, exercise, physical activity, and health sciences. Published by Elsevier B.V. on behalf of Shanghai University of Sport, JSHS is dedicated to promoting original and impactful research, as well as topical reviews, editorials, opinions, and commentary papers. With a focus on physical and mental health, injury and disease prevention, traditional Chinese exercise, and human performance, JSHS offers a platform for scholars and researchers to share their findings and contribute to the advancement of these fields. Our journal is peer-reviewed, ensuring that all published works meet the highest academic standards. Supported by a carefully selected international editorial board, JSHS upholds impeccable integrity and provides an efficient publication platform. We invite submissions from scholars and researchers worldwide, and we are committed to disseminating insightful and influential research in the field of sport and health science.