4D立体摄影仪和惯性测量单位系统之间的实验比较,用于步行时空参数和关节动力学
Sara Meletani1, Sofia Scataglini2, Marco Mandolini1
1Department of Industrial Engineering and Mathematical Sciences, Università Politecnica delle Marche, via Brecce Bianche 12, 60131 Ancona, Italy.
Sensors (Basel, Switzerland)
|July 27, 2024
概括
Move4D 3D 时光扫描系统准确地测量了像姿势和摆动时间这样的步态参数,为传统方法提供了可靠的替代方案. 它在大多数步态评估中显示了与Xsens相似的结果.
科学领域:
- 生物力学 生物力学
- 步态分析 步态分析
- 运动捕捉技术的技术.
背景情况:
- 传统的步态评估受到时间,专业知识,文物和成本的限制.
- 三维时光扫描为这些局限性提供了潜在的解决方案.
- 这项研究验证了一个新的3D时间扫描系统,Move4D,与一个既定的惯性系统,Xsens.
研究的目的:
- 为了比较Move4D 3D时间扫描系统与Xsens惯性运动捕捉系统的可靠性和准确性.
- 评估系统在评估步态时空参数和关节动力学方面的表现.
- 确定Move4D适用于临床环境中的定量步态评估的适用性.
主要方法:
- 包括13名健康个体和1名半患者.
- 测量关键步行参数:立场时间,摇摆时间,循环时间和步伐长度.
- 使用配对样本 t 测试,布兰德-阿尔特曼图形和类内相关系数 (ICC) 的统计分析.
主要成果:
- 与Xsens相比,Move4D在立场时间,摇摆时间和循环时间方面表现出高度一致,没有显著差异 (p > 0.05).
- 在两种系统之间的步伐长度测量中观察到一个显著的差异 (p < 0.05).
- 关节动力学的最高平方根平均误差 (RMSE) 在部曲/延伸中为10.99°.
结论:
- 移动4D系统提供了可靠和准确的步行时空参数估计 (步行阶段持续时间,循环时间).
- 在关节角度评估方面,Move4D的准确性与Xsens相美.
- 这项研究支持在临床实践中使用4D扫描进行创新,定量步态分析.
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