Abstract
This paper is about a system which supports continuation of daily physical exercise. According to the motivation theory, an intrinsic motivation is a key to acquire the physical exercise habit. An intrinsic motivation develops in self-determinable situations, so we developed a gymnastics system, which allows its participants to determine how they move and exercise. The system should satisfy conditions below: (i) Guides its participants to rhythmic and big-motioned exercise using four major muscles, (ii) Allows its participants to determine how they exercise, and (iii) Maintains exercise intensity from 55 to 65 %HRmax. We newly defined abstracted-quantity, which represents expansion of exercise, and invent the biofeedback exercise program to achieve the conditions above. Evaluations indicated the efficiency of developed system.
