评估功能负载对称性:在健康的年轻成年人中,一个15%值的例子
Jill Streamer1, Vaibhavi Rathod1, Robin M Queen2
1Department of Biomedical Engineering and Mechanics, Virginia Tech, 495 Old Turner Street, 300 Norris Hall, Blacksburg, VA 24060, USA.
Gait & posture
|December 21, 2025
概括
15%的门比传统的10%更好地反映了健康成年人日常活动中的自然四肢对称性. 这凸显了选择适合功能任务的对称性指数的重要性.
科学领域:
- 生物力学 生物力学
- 人类运动分析 人类运动分析
- 整形外科 整形外科 整形外科
背景情况:
- 肢体对称性通常被定义为10%的差异,主要来自特定运动的测试.
- 它与健康个体的日常功能任务的相关性尚未得到充分理解.
- 这项研究研究了日常活动的对称性值.
研究的目的:
- 为了评估常见四肢对称性指数之间的差异.
- 为了确定10%或15%的门是否适合健康的年轻成年人在日常功能任务中.
- 在平行走路,楼梯谈判和坐立运动中评估对称性.
主要方法:
- 72名健康的年轻人参加了这次考试.
- 在平行行走,楼梯上升/下降和坐立时使用内收集平面负荷数据.
- 使用峰值冲击力 (PIF) 和平均负载率 (ALR) 计算四肢对称性,其中包括绝对对称性指数 (ASI),相对四肢对称性指数 (rLSI) 和绝对规范对称性指数 (aNSI).
- 使用奇平方分析和ICC值来评估值的适当性和指数协议.
主要成果:
- 10%的对称度值仅适用于PIF在楼梯上升和下降时.
- 15%的门在所有任务中捕获了更多的尝试,特别是PIF在与步行相关的活动中.
- 在ALR和PIF之间发现了ASI和RLSI的优秀协议.
- 在步行和楼梯下降过程中,ALR和aNSI指数之间的一致性很差.
结论:
- 15%的对称值可能更好地适应功能活动期间肢体负荷的自然变化.
- 对称性指数的选择至关重要,因为不同的指数显示不同的协议,特别是在步态和楼梯下降.
- 进一步的研究应该考虑索引选择对解释功能对称性的影响.
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