A Kinect based adaptive exergame

This paper describes an application that aims to stimulate physical activity adapted to elderly people. The application is implemented as a game with two avatars: user and trainer. The user avatar must reproduce the movements of the trainer's avatar. The similarity between two movements is computed using Dynamic Time Warping. Also the speed of the trainer is adapted to the user's movements using cross-correlation. Thus the game can stimulate for a long time physically activity. The preliminary evaluations with ten people have shown that the system can be an effective tool that engages users into physical activity.