Keep healthy with fun: an entertainment system for keeping the motivation of daily, dull, and monotone exercise

Daily exercise is one of the popular methods to keep healthy. However, it is hard for most people to fit some exercise into their daily routine, because such exercise is often dull and monotone enough that their motivation of the exercise falls down. In this paper, we propose an entertainment system, "Exercise Game System (ExS)", to improve the person's motivation of daily exercises. It provides an entertainment which has a charactergrowing up based on the amount of exercise. The amount is estimated by the heart rate during the exercise. At weekend, the character participates a battle game, in which it fight against some other characters owned by other exercising people. By watching growth of a character and the battle game, users feel that dull and monotone exercise becomes fun.