从圣器IMU获得的休跑者的动力学验证和分析
1Sport and Physical Activity Research Centre, Sheffield Hallam University, Olympic Legacy Park, 2 Old Hall Rd, Sheffield S9 3TY, UK.
Sensors (Basel, Switzerland)
|January 25, 2025
概括
圣器安装的惯性测量单元 (IMU) 准确地重建运行动力学,性能优于其他过器. 这项技术可以对跑步模式进行详细的分析,以提高表现和康复.
科学领域:
- 生物力学和体育科学 生物力学和体育科学
- 可穿戴式传感器技术
背景情况:
- 准确的运行动力学重建对于性能分析和伤害预防至关重要.
- 传统的移动捕捉系统昂贵,实验室限制,限制了现实世界的应用.
- 惯性测量单元 (IMU) 提供了一个潜在的便携式和具有成本效益的替代方案.
研究的目的:
- 为了验证安装在神经部上的IMU用于重建运行动力学.
- 为了比较卡尔曼和补充过器在IMU数据处理中的准确性.
- 分析跑步运动模式的个体内和个体间的差异.
主要方法:
- 一个神经部装的IMU被用来收集24名休跑步者的跑步数据.
- 使用卡尔曼和补充过器处理IMU数据,并使用RMSE和Bland-Altman分析对运动捕捉系统进行验证.
- 运行时的运动模式使用福里埃变换系数,PCA和k-means集群分析.
主要成果:
- 卡尔曼过的IMU数据显示出与运动捕捉的高度一致,平均偏差约为2毫米,明显优于补充过数据 (~10.5毫米偏差).
- 从卡尔曼过数据计算的骨盆角与系统偏差约0.3度的优越一致性,而补充过数据的系统偏差为约3.4度.
- 确定了两个具有独特运动模式的不同类型的跑步者群体,其个体内速度变化微不足道,但个体间差异很大.
结论:
- 安装在神经部上的IMU,特别是当使用卡尔曼过处理时,对于重建骨盆运行动力学是可行的.
- 这项技术为分析跑步运动模式提供了移动捕捉的实用替代方案.
- 通过识别不同的跑步者个人资料,IMU可以促进个性化的绩效分析和康复计划.
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