在不同的行走条件下,最小惯性测量单元配置和光学运动捕捉系统之间的3D脚动力学的比较

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Measuring the Kinematics of Daily Living Movements with Motion Capture Systems in Virtual Reality

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Jongsu Kim¹, Lingchao Xie², Sanghyun Cho³

¹Department of Physical Therapy, Yonsei University, Wonju, 26493, South Korea. asdqwe1832@yonsei.ac.kr.

Scientific reports

|February 11, 2026

概括

惯性测量单元 (IMU) 显示出在不同表面行走时,足运动在斜面和横面平面上的良好一致性. 跨条件的重复性支持IMU用于现实世界的生物力学分析.

科学领域:

生物力学生物力学
人类运动分析人类运动分析
可穿戴技术可穿戴技术

背景情况:

精确的3D脚动力学对于生物力学研究和临床应用至关重要.
光学运动捕捉系统 (OMC) 是黄金标准,但成本昂贵,实验室限制.
惯性测量单元 (IMU) 提供了一个便携式的替代方案,但它们在各种条件下的有效性需要评估.

研究的目的:

与OMC相比,评估IMU衍生的脚运动学的一致性和可重复性.
评估三种行走表面的IMU性能:平面,内和外.
通过使用最小的IMU设置,分析脚运动的斜,正面和横向平面.

主要方法:

对IMU和OMC数据进行3D脚动力学的比较.
评估不同步行面的一致性和可重复性.
分析脚运动在三个枢纽平面 (斜面,正面,横面).

主要成果:

适度至高的一致性和一致的重复性被发现,适用于斜脚和横脚平面,特别是在平面和内侧形表面.
前面平面在曲的表面上显示出有限的一致性,可能是由于复杂的脚动力学和校准问题.
在所有测试条件中观察到一致的重复性.

结论:

IMU在各种行走条件下显示可靠的可重复性来跟踪脚动力学.
IMU显示出作为一种功能性工具的潜力,用于在实验室环境之外分析脚运动.
在不均的表面上,前面平面的精度可能受到限制,这需要进一步调查.

关键词:

脚运动学脚运动学多样化的行走条件.步态分析步态分析惯性测量单位是一种惯性测量单位.光学运动捕捉系统.有效性和可重复性有效性和可重复性

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