Estimation of Continuous Joint Angles of Upper Limb Based on sEMG by Using GA-Elman Neural Network

Figure 2

Movement description. (a) The initial state of the subject. The arms are naturally lowered vertically. (b) The subject touched his right shoulder. (c, d) Subjects lifted the right arm as much as possible in different directions.

(a)

(b)

(c)

(d)