Cutlip R G, Mancinelli C, Huber F, DiPasquale J
Division of Safety Research, National Institute for Occupational Safety and Health, Morgantown, WV, USA.
Gait Posture. 2000 Oct;12(2):134-8. doi: 10.1016/s0966-6362(00)00062-x.
The purpose of this study was to compare kinematic gait parameters measured with an instrumented walkway system (GAITRite(R)) and a video-based system (peak performance motus 3.1(R)). Subjects walked across a GAITRite mat with embedded pressure sensors. Reflective markers were attached to subjects' shoes and video capture was simultaneously performed during each trial. Video data were then digitized manually using peak software. Correlation coefficients for all parameters measured with both systems were high (>/=0.94). Significant differences between systems were found with analysis of variance (ANOVA) for two parameters, step length and stride velocity (P=0.003, 0.0002). The results of this study indicate that the instrumented walkway gave comparable results for temporal parameters but further investigation is needed to evaluate the fidelity of its spatial performance.
本研究的目的是比较使用仪器化步道系统（GAITRite®）和基于视频的系统（Peak Performance Motus 3.1®）测量的运动步态参数。受试者走过带有嵌入式压力传感器的GAITRite垫子。反光标记附着在受试者的鞋子上，并且在每次试验期间同时进行视频捕捉。然后使用Peak软件手动将视频数据数字化。两个系统测量的所有参数的相关系数都很高（≥0.94）。通过方差分析（ANOVA）发现，在步长和步速这两个参数上，两个系统之间存在显著差异（P = 0.003，0.0002）。本研究结果表明，仪器化步道在时间参数方面给出了可比的结果，但需要进一步研究以评估其空间性能的保真度。
