3D打印的内用于测量行走时的地面反应力和压力中心
Le Tung Vu1, Joel Bottin-Noonan1, Lucy Armitage1
1School of Mechanical, Materials, Mechatronic and Biomedical Engineering, Faculty of Engineering and Information Sciences, University of Wollongong, Wollongong, NSW 2522, Australia.
Sensors (Basel, Switzerland)
|April 26, 2025
概括
研究人员开发了一种低成本的3D打印内,使用气动室来估计地面反应力 (GRF) 和压力中心 (COP). 这项创新使走路分析能够在实验室之外进行,为昂贵的设备提供了负担得起的替代方案.
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:
- 地面反应力 (GRF) 和压力中心 (COP) 对于步态分析和设备控制至关重要.
- 目前的测量方法依赖于昂贵的实验室设备,如强力板或专门的内.
- 需要具有成本效益的便携式解决方案,用于在受控环境之外进行步态分析.
研究的目的:
- 开发和验证一种新的3D打印内,用于在行走时估计GRF和COP.
- 创建一个低成本的替代现有的商业仪器内.
- 为了使步态分析在不同的设置,包括在实验室条件之外.
主要方法:
- 开发了一种3D打印的内,配有两个气动腔和压力传感器.
- 使用移动捕获数据和参数识别技术进行内表征和验证.
- 在不同速度行走时测试内的性能.
主要成果:
- 3D打印的内底表现出耐用性,承受高达体重1.2倍的负载.
- 内的带宽足以捕捉动态步态特征.
- 估计的GRF和前后COP位置的验证误差小于9%.
结论:
- 开发的3D打印内提供了一种具有成本效益和准确的方法来估计GRF和COP.
- 这项技术可以在实验室外进行步态分析,克服商业解决方案的成本障碍.
- 这种低成本的解决方案在诸如外骨控制和临床步态评估等领域有潜在的应用.
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