Muscle Synergy and Musculoskeletal Model-Based Continuous Multi-Dimensional Estimation of Wrist and Hand Motions

Figure 3

Quasi-tension data filtering process. The low-pass filter was the second-order Butterworth filter with 5 Hz cutoff frequency. (a) Raw EMG signal. (b) Rectified EMG signal. (c) Low-pass filtered EMG signal.

(a)

(b)

(c)