Beside SCI persons, other neurological patients also suffer from paralysis of the upper extremities and the related restrictions in terms of independence and life quality. In Germany, 60% of the 150,000 patients affected by a stroke for the first time survive the first year, one-third of them with a hemiplegia (Exner, 2004). In Germany, 10% of the annual 250,000 traumatic brain injury patients live with motor deficits at the upper extremities.