Agreement Between Spatiotemporal Gait Parameters Measured by a Markerless Motion Capture System and Two Reference Systems-a Treadmill-Based Photoelectric Cell and High-Speed Video Analyses: Comparative Study.
Felipe García-PinillosDiego Jaén-CarrilloVíctor Manuel Soto-HermosoPedro Ángel Latorre RománPedro Delgado-FloodyCristian Martínez SalazarAntonio CartonLuis Enrique Roche-SeruendoPublished in: JMIR mHealth and uHealth (2020)
The results indicate that the Kinect+MotionMetrix combination slightly overestimates contact time and strongly underestimates flight time as compared to the OptoGait system and high-speed video analysis at 1000 Hz. However, it is a valid tool for measuring step frequency and step length when compared to reference systems. Future studies should determine the reliability of this system for determining temporal parameters.