REEV SENSE IMU用于中风后患者的时空行走分析:对光学运动捕捉的验证
Thibault Marsan1, Sacha Clauzade1, Xiang Zhang2,3
1REEV SAS, 31000 Toulouse, France.
Sensors (Basel, Switzerland)
|January 28, 2026
概括
REEV SENSE IMU准确地测量了中风后康复的时间步行参数. 对于慢步行者来说,空间测量可能不那么可靠,需要仔细解释.
科学领域:
- 康复工程 康复工程
- 生物医学工程 生物医学工程
- 临床生物力学 临床生物力学
背景情况:
- 客观的步态评估对于监测中风后康复进展至关重要.
- 传统的光学运动捕捉系统往往太昂贵和复杂,无法广泛的临床使用.
- 惯性测量单元 (IMU) 为步态分析提供了一个潜在的低成本,可访问的替代方案.
研究的目的:
- 验证REEV SENSE IMU用于测量慢性中风患者的时空步行参数.
- 评估辅助设备 (例如,棒) 对基于IMU的步态测量的准确性的影响.
- 为了比较IMU衍生的步态数据与黄金标准的光学运动捕捉.
主要方法:
- 20名慢性中风幸存者参与了这项研究,其中14人完成了这项研究.
- 参与者以自己选择的速度行走,同时由REEV SENSE IMU和光学运动捕捉系统同时记录.
- 类内相关系数 (ICC),平均相对误差 (MRE) 和布兰德-阿尔特曼分析被用于统计比较.
主要成果:
- 时间参数 (接触时间,步伐持续时间,节奏) 显示出出色的可靠性 (ICC 0.95-0.99) 和低误差 (MRE 1.80-5.45%).
- 空间参数,特别是步伐长度,在使用棒子的参与者中表现出更大的变化和显著降低 (ICC 0.76,MRE 8.60%).
- 排除标准删除了6名参与者,他们的步行速度非常慢 (<0.28米/秒).
结论:
- REEV SENSE IMU是一种实用且可靠的工具,用于在中风后康复中测量时间步行参数.
- 在慢步行或使用辅助设备的人群中,应谨慎解释空间步行参数的准确性,特别是步伐长度.
- 建议对依赖于特定人群IMU精确空间步态测量的临床决定进行进一步的验证.
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