The purpose of this study was to collect basic data to make physical activity guidelines for Japanese elementary school children. The method investigated physical activity （step counts, amount of physical activity, activity time, a total energy consumption, walking distance, exercise strength） using a life coda. In addition, fitness test was incorporated to examine physical strength （pitching distance, running speed, jumping distance, muscular strength, and running stamina etc) . A significant difference （p＜0.05） in the amount of physical activity between the boys who ranked high on the physical strength test and those who ranked low on the physical test was found. For the girls, a significant difference （p＜0.05） for the amount of physical exercise, total energy consumption and walking distance was found between the higher and lower ranked groups. In addition, for the boys, a correlation was found between the amount of physical exercise, total energy consumption and total score on the fitness test （r＝0.238-0.263, p＜0.05) . For the girls, a correlation was found between the amount of physical exercise, total energy consumption and walking distance （r＝0.196-0.232, p＜0.05) . It is suggested that the values for the amount of physical activity in the higher ranked physical strength groups for the boys （327.7±101.2 kcal） and girls （214.7±71.8 kcal) , as well as, the total energy consumption for girls （1870±220 kcal） be used as the targeted values for developing physical strength in elementary school children.
