Fig. 4

(a) Setup for the clinical evaluation of the device. A video camera was used to acquire the data necessary for the calibration and to collect movement data during the therapy for offline processing. The patient wore the exoskeleton while sitting on a chair with the forearm held by the chair’s arm. The reference profile for the joint angle (blue bars) was shown to the patient through a GUI displayed on a screen. (b) position of the marker on the finger and exoskeleton to perform the calibration procedure and LUT generation