确定计算关节协调的最佳循环数和在不同速度运行时的可变性: 一个时间序列分析
Javad Sarvestan1, Peyman Aghaie Ataabadi2, Mehdi Khaleghi Tazji3
1Department of Biomedical Engineering, Schulich School of Engineering, University of Calgary, Alberta, Canada; Department of Geomatics Engineering, Schulich School of Engineering, University of Calgary, Alberta, Canada; Human Motion Diagnostic Centre, University of Ostrava, Ostrava, Czech Republic.
Journal of biomechanics
|October 24, 2024
概括
确定可靠的运行协调需要至少10个步态周期,以进行连续相对相位 (CRP) 计算. 然而,评估运行可变性 (CRPv) 需要至少30个周期才能获得可靠的结果.
科学领域:
- 生物力学 生物力学
- 人类的机动运动
- 发动机控制器的控制器
背景情况:
- 了解跑步协调和可变性是预防伤害和技能发展的关键.
- 为了有效地评估运行动态,需要确定可靠数据的最低步行周期数量.
- 连续相对阶段 (CRP) 是分析运动期间关节协调的常用方法.
研究的目的:
- 确定在跑步过程中可靠计算关节,关节和膝关节协调和可变性所需的最低步行周期数量.
- 评估不同跑步机速度对协调和可变性指标可靠性的影响.
- 为优化运行研究中的数据收集和分析提供指导.
主要方法:
- 跨截面研究设计,涉及29名健康成年人.
- 使用光电子摄像头收集的3D下肢运动数据是在跑步机上以9,12.5和16公里/小时的速度运行时采集的.
- 类内相关系数 (ICC) 分析以评估CRP和CRPv在3,5,10,20和30步行周期中的可靠性.
主要成果:
- 为了在所有测试速度上可靠计算连续相对相位 (CRP),至少需要10个步态周期.
- 至少需要30个步态周期才能达到持续相对相位变化 (CRPv) 中等到良好的可靠性.
- 增加步态周期提高了CRP的可靠性,但对CRPv不一致,突出了需要单独评估的需要.
结论:
- 可靠的运行协调 (CRP) 分析可以通过10个步态周期来实现.
- 评估运行可变性 (CRPv) 需要一个更大的30步态周期的样本,以获得可靠的结果.
- 对CRP和CRPv的不同循环要求强调了定制分析在开展生物力学研究中的重要性.
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