阶段协调指数的测试-重新测试可靠性 - 衡量双边协调的一种措施
Sutton B Richmond1, Clayton W Swanson2, Steven P Winesett1
1Brain Rehabilitation Research Center, Malcom Randall VA Medical Center, Gainesville, FL, USA.
Gait & posture
|October 1, 2025
概括
阶段协调指数 (PCI) 衡量步行协调. 将PCI标准化为步行速度可以提高其可靠性,以评估老年人的移动性.
科学领域:
- 生物力学 生物力学
- 老年学是指老年学的学科.
- 神经学 神经学
背景情况:
- 通过阶段协调指数 (PCI) 衡量的双边协调对于老年人安全移动至关重要.
- 评估PCI测量的可靠性对于其临床应用很重要.
研究的目的:
- 为了评估阶段协调指数 (PCI) 的测试-重新测试可靠性.
- 确定将PCI标准化为步行速度是否会提高其可靠性.
主要方法:
- 43名老年人进行了两次2分钟的步行测试,分隔3周.
- 七个惯性监控单元跟踪了运动,计算了步行速度正常化前后的PCI.
- 应用了两种规范化方法:个体试验步行速度和试验中的平均步行速度.
主要成果:
- 未经调整的PCI的类内相关系数 (ICC) 为0.566.
- 规范化的PCI显示出更好的可靠性,ICC为0.771和0.784.
- 布兰德-阿尔特曼分析表明,这两项测量试验之间没有显著的偏差.
结论:
- 阶段协调指数 (PCI) 证明了可接受的测试重复测试可靠性,用于评估步行协调.
- 建议将PCI标准化为步行速度,以提高老年人的测量一致性和可靠性.
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