We examined the physiological and psychological responses of children while playing a portable video game, exercise game, and playing outdoors. Subjects were ten obese children (with a mean percentage overweight of 39.5%) mean age of 10.2 years. No significant differences were observed in the number of steps taken, heart rate, oxygen uptake, or energy consumption between when playing a video game and resting state. On the other hand, the number of steps taken, heart rate, oxygen uptake, and energy consumption, and RPE while playing an exercise game were significantly higher than those when resting state or playing a non-exercise game. There was no difference in the above-mentioned parameters between when playing outdoors and an exercise game.
　It was demonstrated that playing an exercise game at home has the effect of preventing a decrease in physical activity, and playing it regularly on a long-term basis may help overweight children lose or prevent abnormal weight gain.

DESCENTE SPORTS SCIENCE Vol.30/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE