The common rehabilitation tends to be monotonous for the patients. In addition, the moderate physical exercises are required in order to maintain the functions of the mind and the body. We, therefore, propose to realize recovery and maintenance of the functions naturally by playing virtual tennis. In this paper, we focus on the motion range of shoulders. We investigate the motion range of shoulder joints in various tennis swings. Based on the experimental results, we examine whether the tennis swings are suitable for the recovery and the maintenance of the joint motion range.
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