在那些有ACL重建的人中,关节间协调和下肢支持
Steven A Garcia1, Derek N Pamukoff2, Justin D Dennis3
1Department of Kinesiology and Nutrition, University of Illinois, Chicago, Chicago, IL, USA.
Journal of biomechanics
|May 3, 2025
概括
前十字带重建 (ACLR) 后的个体通过增加脚和部运动来改变行走,以弥补膝盖支的减少. 这种协调策略有助于管理在行走期间对手术肢体的需求.
科学领域:
- 生物力学 生物力学
- 整形外科 整形外科 整形外科
- 运动科学 运动科学
背景情况:
- 前十字带重建 (ACLR) 患者表现出改变的步态模式.
- 支持需求从手术膝盖转移,可能需要补偿的脚或部行动.
研究的目的:
- 为了比较ACLR患者在走路时的下肢支和关节间协调.
- 了解ACLR患者如何适应和协调运动以重新分配支持需求.
主要方法:
- 在28名ACLR患者和20名健康对照人群中,评估了跑步机上以首选速度行走.
- 计算的总支时刻 (TSM) 和单个联合贡献,使用合式联合时刻.
- 在姿势阶段使用矢量编码评估关节间协调 (脚-膝盖,膝盖-部).
主要成果:
- 与逆侧肢相比,ACLR肢体显示出较小的第一个峰值TSM和更大的部贡献 (6%).
- ACLR四肢在早期/中期姿势中表现出增加的脚运动,在中期晚期姿势中表现出增加的部运动.
- 协调变化包括更多地依赖脚和膝盖运动来弥补膝盖力学.
结论:
- 患有ACLR的人在行走时表现出改变的关节协调策略.
- 这些策略涉及增加脚和部的贡献,以管理支持和推进需求.
- 改变协调可能会降低在ACLR后手术肢体的肌肉需求.
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