Lichaamsbeweging van 10-jarige schoolkinderen in Rotterdam 1981

Exploration of possibilities to investigate physical activity of children. Activity during the day / participation in clubs / means of transportation / sports and gymnastics /...儿童身体活动（physical activity）调查可行性探索。相关调研范畴包括日间活动、俱乐部参与情况、出行方式、体育运动与体操运动等。