| Abstract | | This paper presents four arm rehabilitation games played by a patient together with their friend, relative or therapist. One game involves competition, two involve cooperation, and one is played alone by the patient. All four games were tested by 29 participants with arm impairment for 3 min per game. In-game motivation and exercise intensity were examined. The most promising results were achieved with the competitive game, which shows the highest level of exercise intensity and high motivation, but only in participants who enjoy competition. Furthermore, playing with a friend or relative appears to be more motivating than playing with a therapist, though this likely depends on the game design.
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