Tozawa Ryosuke, Ishii Narumi, Onuma Ryo, Kawasaki Tsubasa
Department of Physical Therapy, Faculty of Health Science, Ryotokuji University: 5-8-1 Akemi, Urayasu, Chiba 279-8567, Japan.
Department of Rehabilitation, Kasai Clinic of Orthopedic and Internal Medicine, Japan.
J Phys Ther Sci. 2023 Jul;35(7):538-541. doi: 10.1589/jpts.35.538. Epub 2023 Jul 1.
[Purpose] This study aimed to evaluate the reliability and validity of measuring the range of motion of joints using a remote videoconferencing system (Zoom) and a smartphone application. [Participants and Methods] This study included 16 young and healthy adults. The participants were instructed to perform shoulder joint flexion exercises in a seated position, with automatic motions, and maintain that posture throughout the measurement. Two measurements were performed: 1) angle measurement using a three-dimensional (3D) motion analyzer, and 2) angle measurement using the videoconference software, Zoom, and a smartphone application. Intra- and inter-rater reliabilities were calculated using the intraclass correlation coefficients (ICC). The degree of agreement between the representative values of each measurer and the 3D motion analyzer was examined. [Results] ICC (1, 1) for intra-examiner reliability were 0.912 and 0.996. For the inter-rater reliability, the ICC (2, 1) was 0.945. The correlation coefficient between each examiner's value and the value of the 3D motion analyzer was 0.955 and 0.980, respectively. The Bland-Altman analysis results indicated no systematic error. [Conclusion] The method of remotely measuring joint range of motion using Zoom and a smartphone application demonstrated high reliability and validity.
[目的] 本研究旨在评估使用远程视频会议系统（Zoom）和智能手机应用程序测量关节活动范围的可靠性和有效性。[参与者与方法] 本研究纳入了16名年轻健康的成年人。参与者被要求在坐姿下进行肩关节前屈运动，并自动运动，在整个测量过程中保持该姿势。进行了两次测量：1）使用三维（3D）运动分析仪进行角度测量，2）使用视频会议软件Zoom和智能手机应用程序进行角度测量。使用组内相关系数（ICC）计算评分者内和评分者间的可靠性。检查了每个测量者的代表值与3D运动分析仪之间的一致性程度。[结果] 检查者内可靠性的ICC（1,1）分别为0.912和0.996。对于评分者间可靠性，ICC（2,1）为0.945。每个检查者的值与3D运动分析仪的值之间的相关系数分别为0.955和0.980。Bland-Altman分析结果表明无系统误差。[结论] 使用Zoom和智能手机应用程序远程测量关节活动范围的方法显示出高可靠性和有效性。
