前十字韧带重建后女运动员单腿着地时的姿势控制。

IF 1.6 Q3 SPORT SCIENCES International Journal of Sports Physical Therapy Pub Date : 2024-06-01 eCollection Date: 2024-01-01 DOI:10.26603/001c.117400
Ayane Ogura, Terumitsu Miyazaki, Hirofumi Ida, Satoshi Shibata, Masahiro Takemura
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引用次数: 0

摘要

背景:继发性前交叉韧带(ACL)损伤是前交叉韧带重建术(ACLR)的并发症之一,其原因可能是神经肌肉控制发生了改变,影响了运动过程中保持平衡所需的预期姿势调整(APA)和补偿姿势调整(CPA)。目的:本研究旨在阐明前交叉韧带损伤后运动员与健康运动员在单腿着地时,前交叉韧带损伤后运动员的前交叉韧带损伤后肌肉活动、下肢运动学和动力学方面的差异:研究设计:横断面研究:招募 18 名女运动员,分为前交叉韧带损伤组(9 人)和对照组(9 人)。实验任务包括从一个 30 厘米的箱子中单脚着地。使用三维运动分析系统测定关节角度和力矩,同时使用表面肌电图评估肌肉活动。分析间隔分为两个阶段:APA 阶段(-150 毫秒至 50 毫秒)和 CPA 阶段(50 毫秒至 250 毫秒),以初始接触(0 毫秒)为参考点。肌肉活动开始时间定义为基线超过平均值和 2 个标准差之和的时间:结果:前交叉韧带置换组和对照组的肌肉活动或开始时间没有明显差异。然而,在前交叉韧带撕裂矫正组的 CPA 阶段,观察到髋关节外旋力矩增加:这些研究结果表明,前交叉韧带修复术后一年以上恢复运动的运动员的APA和CPA可能相似。ACLR组在CPA阶段髋关节外旋力矩的增加可能是ACLR后减少髋关节内旋角的一种特殊补偿策略:证据等级:III。
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Postural Control During Single-Leg Landing in Female Athletes After Anterior Cruciate Ligament Reconstruction.

Background: Secondary anterior cruciate ligament (ACL) injury is a complication of ACL reconstruction (ACLR), which may result from altered neuromuscular control affecting anticipatory postural adjustments (APAs) and compensatory postural adjustments (CPAs) required for maintaining balance during movement. However, it remains unclear how APAs and CPAs differ in single-leg landings post-ACLR compared to healthy subjects.

Purpose: The purpose of this study was to clarify the differences in muscle activities of APAs and CPAs, lower limb kinematics, and kinetics between athletes with a history of ACLR and healthy athletes during single-leg landing.

Study design: Cross-sectional study.

Methods: Eighteen female athletes were recruited and divided into ACLR (n = 9) and control groups (n = 9). The experimental task involved a single-leg landing from a 30 cm box. Joint angles and moments were determined using a 3-dimensional motion analysis system, while muscle activity was assessed using surface electromyography. Analysis intervals were divided into two phases: the APA phase (-150 ms to 50 ms) and the CPA phase (50 ms to 250 ms), with initial contact (0 ms) as the reference point. Muscle activity onset time was defined as the time when the baseline exceeded by the sum of mean values and 2 standard deviations.

Results: No significant differences were observed in muscle activity or onset time between the ACLR and control groups. However, an increased hip external rotation moment was observed during the CPA phase in the ACLR group.

Conclusion: These findings suggest that APAs and CPAs of athletes who returned to sports more than 1 year post-ACLR may be similar. The increased hip external rotation moment in the ACLR group during the CPA phase could represent a specific compensatory strategy to decrease the hip internal rotation angle post-ACLR.

Level of evidence: III.

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来源期刊
CiteScore
2.50
自引率
5.90%
发文量
124
审稿时长
16 weeks
期刊最新文献
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