Research Article

Effectiveness of Variable-Gain Kalman Filter Based on Angle Error Calculated from Acceleration Signals in Lower Limb Angle Measurement with Inertial Sensors

Figure 8

Average values of RMSE of measured inclination angles during treadmill walking calculated by using Methods 4 and 5.
398042.fig.008a
(a) Foot inclination angle  
398042.fig.008b
(b) Shank inclination angle
398042.fig.008c
(c) Thigh inclination angle