Xsens惯性传感器系统在步态分析中的重测信度研究  

Repeatability of Gait Parameters in Healthy Adults based on Xsens Inertial Sensor System

作　　者：冯雨果 张丁午 刘玲玥 刘宇 王睿 FENG Yuguo;ZHANG Dingwu;LIU Lingyue;LIU Yu;WANG Rui(College of Art and design,Xihua University,Chengdu 610039,China;Chongqing Brice Technology Co.,Ltd,Chongqing 401120,China;Chengdu Institute of Product Quality Supervision and Inspection,Chengdu 610041,China)

机构地区：[1]西华大学美术与设计学院,四川成都610039 [2]重庆布瑞斯科技有限公司,重庆401120 [3]成都市产品质量监督检验研究院,四川成都610041

出　　处：《皮革科学与工程》2024年第5期81-85,共5页Leather Science and Engineering

基　　金：国家市场监督管理总局科技计划项目(2023MK155)。

摘　　要：探究Xsens惯性传感器运动捕捉系统测量时空步态参数和下肢关节角度的重测信度。在2个测试日分别采集15名健康个体步行过程中的时空步态参数(步速、步长、步频、支撑相占比和双支撑相占比)以及髋、膝和踝关节在矢状面、额状面和水平面的最大角度和关节活动度,2次测试间隔(6±1)d。采用组内相关系数及测量标准误比较两次测试的相对信度与绝对信度。结果发现,两次测试的时空步态参数的相对信度结果为一般至极好,绝大部分时空部分参数的绝对信度表现优秀;矢状面上所有关节角度具有极好的重测性,冠状面和水平面上三个关节角度表现为一般至极好,所有关节角度的绝对信度结果均优秀。综上所述,Xsens系统对于测量健康年轻人的时空步态参数和下肢关节角度是可靠的,临床医生和研究人员可以使用Xsens系统来进行健康人体的步态研究。The aim of this study was to investigate the test-retest reliability of spatiotemporal parameters and lower-limb joint angles,obtained from Xsens inertial-sensor-based motion capture system during walking in healthy subjects.Fifteen able-bodied adults completed two separate gait assessments,separated by 6±1?days.Spatiotemporal parameters and lower-limb joint angles were analyzed.The intraclass correlation coefficient(ICC)and standard error of measurement(SEM)were used to compare the relative reliability and absolute reliability of those two sessions.The results showed that the ICC of the spatiotemporal parameters was generally fair-to-excellent,and most of the SEM was excellent.All joints in sagittal plane were excellent and fair-to-excellent agreement was found for all joint angles in transverse and frontal plane,and SEM results were excellent.Our results suggest that the Xsens system is reliable for measuring spatiotemporal gait parameters and lower-limb joint angles in healthy young people,and it can be used by clinicians or researchers to conduct gait research.

关 键 词：惯性测量装置 步态分析 时空步态参数 下肢关节角度 可靠性分析 

分 类 号：TS943.1[轻工技术与工程—服装设计与工程]