Abstract
In order to implement an unobstructed assessment of three-dimensional (3D) gait, we developed a mobile force plate and three-dimensional motion analysis system (M3D) to measure triaxial ground reaction forces (GRF) and three-dimensional orientations of feet. Calibration and test experiments were conducted to characterize the developed sensor. To test accuracy of the new measurement system, validation experiments by using reference measurements of a commercially available measurement system were performed in a gait laboratory, where a stationary force plate, a motion capture system based on high-speed cameras and a motion track system of XSENS are adopted to analyze human movements. Experiment results supported that the developed system can be used to measure triaxial GRF and orientations with an acceptable precision during successive walking gait.
