一种简单有效的方法来计算轮椅框架旋转,使用一轮安装的IMU
Marc Klimstra1,2, Melissa Lacroix3,4, Matt Jensen2
1School of Exercise Science, Physical and Health Education, University of Victoria, Victoria, BC V8W 3P2, Canada.
Sensors (Basel, Switzerland)
|September 9, 2023
概括
一种新方法准确地估计了轮椅框架的旋转,使用单个安装在车轮上的惯性测量单元 (IMU). 这简化了轮椅运动员在训练和比赛期间的移动性指标跟踪.
科学领域:
- 运动科学 运动科学 运动科学
- 生物力学 生物力学
- 康复工程 康复工程
背景情况:
- 惯性测量单位 (IMU) 对于测量运动中的轮椅移动性指标至关重要.
- 目前的3IMU方法是标准的,但它对旋转动力学的准确性仍在争论中.
- 一个单轮安装的IMU (1IMU) 方法为简化测量提供了潜力.
研究的目的:
- 引入和验证一种新的方法来计算轮椅框架的旋转动力学,使用单个轮上安装的IMU.
- 将1IMU方法的准确性与标准测量 (轮椅框架上的IMU) 进行比较.
- 评估使用1IMU用于精英轮椅运动员灵活性任务的可行性.
主要方法:
- 开发了一个新的算法来计算轮椅框架自单个车轮上的IMU的旋转动力学.
- 1IMU方法的结果与使用安装在轮椅框架上的IMU进行的标准测量进行了比较.
- 统计分析包括适合性,根平均平方误差 (RMSE),平均绝对误差 (MAE) 和布兰德-阿尔特曼分析.
主要成果:
- 从1IMU计算的角速度与标准测量之间观察到非常强的线性关系.
- RMSE,MAE和Bland-Altman分析表明这两种方法之间的差异很小.
- 1IMU方法被证明是简单且准确的,用于估计在敏捷任务期间轮椅框架的旋转.
结论:
- 单个安装在车轮上的IMU可以准确地估计轮椅框架的旋转,挑战了3IMU系统的必要性.
- 这种1IMU方法为轮椅运动中的移动性指标分析提供了一种简化且具有成本效益的解决方案.
- 建议进行进一步的研究,以使用3IMU和新的1IMU方法来比较全面的轮椅移动性指标.
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