Key Finding
This study shows that both tools showed high reliability for knee and hip ROM, though Kemtai overestimated values compared to EasyAngle®.
Abstract
Precise range of motion (ROM) measurements are critical for diagnosing musculoskeletal impairments, planning treatment strategies and monitoring rehabilitation progress. This study compares the reliability and accuracy of ROM measurements using the EasyAngle electronic goniometer device and the Kemtai pose estimation video-based motion tracking software.
Participants performed hip extension and knee flexion movements, with measurements taken by two examiners using both tools.
Methods
Comparative study measuring knee flexion and hip extension ROM using both EasyAngle® and Kemtai motion tracking in healthy adults.
Study Figures
Results
The results show that both EasyAngle and Kemtai provide high inter-repetition reliability for knee flexion (ICC 0.93 and 0.91) and hip extension (ICC 0.88 and 0.84). However, Kemtai consistently overestimated ROM values compared to EasyAngle.
Conclusion
While both tools are reliable, the EasyAngle® digital goniometer provides more accurate measurements compared to camera-based motion tracking systems.
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