Figure 4
From: Complex couplings between joints, muscles and performance: the role of the wrist in grasping
Upper panel presents the sum of the difference between the normalised length of the four muscles and their optimum normalised length against the wrist angle. The data from all participants and all conditions (3 diameters and 4 postures) are plotted. The lower the value, the closer to their optimum are the muscles. The lower panel shows the normalised grip force against the wrist angle. Red dashed line represents the mean spontaneous (S) posture, with its standard deviation represented by the grey area.
