Muscle synergies and temporal components in healthy and stroke patients. Weight coefficients (A) and activation coefficient profiles (B) for each of extracted synergies in healthy and stroke patients before and after the treatment. Concerning the subplots A, gray bars show the weight coefficient for each subjects involved in the study and black bar profiles indicate group means and standard deviations. Labels on the horizontal axis are: BRAD, brachioradialis; BRAC, brachialis; BIC, biceps brachii; TRI, triceps brachii; DELA, anterior part of deltoid; DELM, medial part of deltoid; DELP, posterior part of deltoid; LAT, latissimus dorsi; TRAP, trapezius superior; PECM, pectoralis major. Labels on the horizontal axis are: 0 w, 0 weeks (pre treatment); 6 w, 6 weeks (post treatment). Concerning the subplots B, gray and thin lines represent the activation profiles for each individual subjects while the thick lines represent the group mean. Labels on the horizontal axis are: N, North; NE, Northeast; E, East; SE, Southeast; S, South; SW, Southwest; W, West; NW, Northwest.