Fig. 1

Overview on the technical and functional background of the glove. The data glove was connected to a computer/laptop running the corresponding software (A). Patients had to complete a course and its alternating obstacles by adjusting the size of a sphere, that was controlled by finger movements. To the left of the screen, a green bar indicated the current motion amplitude based on calibration. At the top, a progress bar specified the position within the course. The button in the upper right corner allowed for cancellation of the game and for returning to the main menu (B). Sensors for data acquisition were located over the dorsal sides of the proximal, resp., the middle phalanges of the long fingers. For the thumb, they were fixed at the first metacarpal bone and the proximal phalanx. The larger main board sensor was placed on the dorsum of the hand in the region of the metacarpus and the carpus and served as the central reference point for the proximal phalanges of the long fingers, as well as for the first metacarpal bone. Corresponding to the anatomical bone structures, on the right, the glove is shown as being worn (C)