This study aims to clarify the relationship the amount of physical activity between children’s exercise play in the morning and the achievement rate of daily recommended physical activity. We found that the amount of physical activity during morning exercise with the intensity LC3-9 was 9-13 minutes; LC4-9, was 7-10 minutes; LC7-9, 2-4 minutes; and the number of steps were 1,600-2,200 . The target number of steps to achieve the recommended physical activity time of 60 minutes was 12,300 steps in LC3-9, including daily activities, and the achievement rate depended on the frequency of morning exercise (High frequency group (a) ＞ Medium frequency group (b) ＞ Low frequency group (c), p＜.001). The target number of steps with medium intensity or higher was 15,300 steps in 60 minutes, the target steps with high intensity was 15,700 steps in 25 minutes. The achievement rate was varid with the frequency of exercise.
