Experimental: Tablet

The intervention group trained bimanual coordination once a day for about 31 minutes on a total of ten days using a tablet game. A ball is to be moved on a circular line.

Active_comparator: Aximo

The patients in the control group receive an ergotherapeutic therapy unit once a day for the same length of time (approx. 31 minutes) for a total of ten days, in which they train unilaterally. In this therapy unit, the control group uses the Aximo. This is a comb stand and so-called rolls with which plugging tasks can be practiced. The patients should push the rolls into the stand fields with the affected hand. With the plug-in game, the patients can complete different tasks that challenge and train their hand-eye coordination, their fine motor skills and their ability to grasp things (e.g. following a specific pattern based on a template or putting colors in a specific order).