Validity of motion analysis using the Kinect system to evaluate single leg stance in patients with hip disorders
Validity of motion analysis using the Kinect system to evaluate single leg stance in patients with hip disorders
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DOI：
10.1016/j.gaitpost.2018.04.010
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发表时间：
2018-05-01
期刊：
影响因子：
2.4
通讯作者：
Adachi, Nobuo
中科院分区：
文献类型：
--
作者：
Asaeda, Makoto;Kuwahara, Wataru;Adachi, Nobuo
背景资料：髋关节疾病患者单腿站立时的异常运动可以通过Kinect系统以及三维运动分析系统检测到。然而，有效性的Kinect系统，以评估单腿站立髋关节疾病患者仍然unknown.Research question：调查的同时有效性的Kinect系统，相对于被认为是运动分析的金标准的VICON三维系统，以测量躯干和骨盆对齐在单腿站立。为探讨Kinect系统对髋关节疾病与非髋关节疾病的区分效度，采用Kinect系统对5名健康人的骨盆和躯干倾斜角进行分类内相关系数（ICC（（3，1），以评价Kinect系统对髋关节疾病的区分效度。为了评价Kinect系统的判别有效性，测量了27名髋关节疾病患者和100名健康人在单腿站立时骨盆和躯干的倾斜角。髋关节疾病和健康个体之间的骨盆和躯干的倾斜的最大角度的差异进行了评估，使用Mann-Whitney U test.Results：ICC值为0.83-0.93之间的骨盆和0.63-0.81的躯干角，分别。使用Kinect系统计算的最大躯干倾斜角度显着高于髋关节疾病患者比健康人，与骨盆倾斜角度无显着组间差异。意义：Kinect系统是足够的，以检测某些异常运动在单腿站立髋关节疾病患者。因此，Kinect系统可以为髋关节疾病患者的评估提供一个方便的运动分析工具。
Background: Abnormal movements during single leg stance in patients with hip disorders could be detected by the Kinect system as well as the three-dimensional motion analysis system. However, validity of the Kinect system to evaluate single leg stance in patients with hip disorders remains unknown.Research question: To investigate the concurrent validity of the Kinect system, relative to the VICON three-dimensional system which is considered as the gold standard for motion analysis, to measure trunk and pelvis alignment during single leg stance. To investigate the discriminant validity of the Kinect system between with and without hip disorders.Methods: For evaluation of the concurrent validity of the Kinect system, the intra-class correlation coefficient (ICC ((3,1))) was calculated for the angle of inclination of the pelvis and trunk in 5 healthy individuals. For evaluation of the discriminant validity of the Kinect system, the angle of inclination of the pelvis and trunk during single leg stance were measured in 27 individuals with hip disorders and 100 healthy individuals. Differences in the maximum angle of inclination of the pelvis and trunk were evaluated between hip disorders and healthy individuals using the Mann-Whitney U test.Results: ICC values were between 0.83-0.93 for the pelvic and 0.63-0.81 for the trunk angle, respectively. The maximum trunk inclination angle calculated using the Kinect system was significantly higher in patients with hip disorders than healthy individuals, with no significant between-group difference in the angle of inclination of the pelvis.Significance: The Kinect system was adequate to detect certain abnormal movements during single leg stance among patients with hip disorders. Therefore, the Kinect system could provide a convenient motion analysis tool for the assessment of patients with hip disorders.