Validity, reliability, and user perspectives of the newly developed joint angle measurement system: a preliminary study.

ABSTRACT: We aimed to evaluate the applicability of a newly developed joint angle measurement system comprising six-axis inertial measurement unit sensors and tablet-based application for estimating joint angles from angular velocity and acceleration data. The application calculated orientation angles from single sensor data, with relative angles calculated using multiple sensors. In experiment 1, validity and reliability were examined using a test device. In experiment 2, static angles of five joints were calculated in four healthy participants using attached sensors and compared with universal goniometer values. In experiment 3, usability and satisfaction were evaluated using the System Usability Scale (SUS) and Quebec User Evaluation of Satisfaction with Assistive Technology (QUEST)-like scale. I

SUBMITTER: Yoshida T 

PROVIDER: S-EPMC12644602 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature