Abstract
The purpose of this study is established the estimation method for accuracy improvement of gait analysis using the wearable force plates. The wearable force plates installing several compact force sensors and inertial and magnetic field sensors, and the reaction force (force and moment), angular velocity, acceleration and magnetic field can be measured. In this study, we established the estimation method of gait velocity and distance using Extended Kalman filter. This method consists of the posture estimation method, the condition of zero velocity in connect on ground and the linear approximation of acceleration error. We indicated the effective gait velocity and distance in the gait analysis using this method. This method can be used the gait analysis using the wearable force plates.
