2025

Hellstén, Thomas; Karlsson, Jonny

TeleRehabilitation (TR) requires precise joint Range Of Motion (ROM) measurement methods. This study assessed the accuracy of a Computer Vision (CV)-based markerless Human Pose Estimation (HPE) application for active shoulder ROM by comparing it with Universal Goniometry (UG) in 20 healthy volunteers. The correlation coefficients between the two methods were 0.94 for shoulder extension, 0.83 for adduction, 0.76 for abduction, and 0.67 for flexion, with mean differences ranging from 3.6° in flexion to - 7° in adduction. These findings indicate that the markerless CV application is a moderately accurate tool for measuring shoulder ROM.