在患有慢性脚不稳定和健康对照患者的垂直下降跳跃期间的脚动力学:双变的置信区间比较
1Northern Kentucky University, School of Kinesiology, Counseling and Rehabilitative Sciences, Highland Heights, KY, USA.
Gait & posture
|July 8, 2023
概括
双变量分析显示,在垂直下降跳跃期间,慢性脚不稳定 (CAI) 患者的脚运动有明显的差异,突出了降落前后的多平面适应.
科学领域:
- 生物力学 生物力学
- 整形外科 整形外科 整形外科
- 运动医学 运动医学
背景情况:
- 慢性脚不稳定性 (CAI) 与降落过程中前部和部平面动力学变化有关.
- 对单平面运动的单变量分析可能会错过CAI中复杂的,多平面的脚适应.
- 两变的置信区间分析提供了一种方法来比较同时的多平面脚动力学.
研究的目的:
- 为了确定双变的置信区间分析是否可以在垂直跳跃期间检测CAI中独特的关节合差异.
- 为了比较CAI和健康对照个体之间的多平面脚动力学.
主要方法:
- 有CAI和健康对照的受试者进行了垂直跳跃.
- 使用电磁运动系统捕获了动力学.
- 分析的正面和斜平面合的两变置信区间从地面接触前100毫秒到地面接触后200毫秒.
主要成果:
- 在接触前和降落后,CAI参与者表现出更强的足部屈曲.
- 接触前的差异包括CAI中增加的脚部flexion和 eversion.
- 降落后,CAI与对照人群相比,显示出更大的反转和脚部flexion.
结论:
- 双变量分析发现了独特的动力学差异,这些差异在单变量方法中没有发现,特别是在降落前.
- 这种多层次的方法为CAI在动态任务期间的补偿策略提供了有价值的见解.
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