Fig. 3
From: Physiological and kinematic effects of a soft exosuit on arm movements
Experimental setup. Subjects were asked to follow a reference trajectory displayed on a screen in the form of a moving elbow, the position of their own arm was superimposed to provide visual feedback. This was done in both the powered and unpowered conditions, while monitoring the elbow angle, the interaction force (only powered) and EMG activity of two antagonistic muscles driving the joint