在动态活动中估计联合扭矩,使用可穿戴的A模式超声波
Yichu Jin1, Jonathan T Alvarez1, Elizabeth L Suitor1
1John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA.
Nature communications
|July 9, 2024
概括
研究人员开发了一种可穿戴式超声波方法,用于测量动态活动期间的关节扭矩. 这项创新允许在实验室外进行精确的生物力学分析,有助于预防和康复伤害.
科学领域:
- 生物力学 生物力学
- 生物医学工程 生物医学工程
- 可穿戴技术可穿戴技术
背景情况:
- 在动态活动中量化内部肌肉骨负荷是很困难的.
- 目前的方法往往是实验室限制或缺乏肌肉特异性.
- 可穿戴技术为现实世界生物力学评估提供了潜力.
研究的目的:
- 开发和验证可穿戴式超声波策略,用于估计关节扭矩.
- 在控制和动态活动中评估该方法的准确性.
- 为了在现实环境中实现非侵入性,肌肉特定的关节扭矩测量.
主要方法:
- 利用带有单元传感器的可穿戴A模式超声波来跟踪肌肉厚度的变化.
- 开发了算法来估计基于肌肉结构和厚度变化的关节扭矩.
- 在异动力学收缩和动态现实世界任务 (举重,骑自行车,运动) 中验证了该方法.
主要成果:
- 在控制的收缩中实现了肘部和膝盖扭矩估计,误差<7.6%和R>0.92.
- 在各种动态活动中成功展示了可穿戴关节扭矩估计.
- 该系统在各种运动类型中显示出高精度和可靠性.
结论:
- 可穿戴式超声波为在不受约束的动态活动中估计关节扭矩提供了一种可行的方法.
- 这项技术为肌肉功能和运动生物力学提供了新的见解.
- 潜在的应用包括加强伤害预防,康复和绩效监测.
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