Studies in decision of' Exercise guideline in children 'and development of physical fitness program at school

首先，为了检验LC的有效性，10名腰戴LC的儿童进行了步行和跑步测试，并在测试过程中使用过期气体分析法测量能量消耗。因此，LC法是测量自由生活条件下儿童身体活动的一种较好的方法。其次，评估288例儿童日常体力活动与健康的关系。结果，男孩和女孩的总步数分别至少需要17000步和13000步。第三，观察四年级小学生在健康教育单位使用运动指南（17000步/天或13000步/天）前后PA的效果（n=86）。这些结果表明，目前的计划能够增加缺乏运动的儿童的PA。

Firstly, to examine validity of LC, ten children wearing LC on their waists performed the walking and running tests and energy expenditure was measured by the expired gas analysis methodduring the tests. As the result, LC method is a good way of measuring physical activity (PA) for children in free-living condition. Secondly, to assess relationship of daily physical activity and fitness in 288 children. As the result, the total steps wererequired at least 17000 steps in boys, and 13000 steps in girls, respectively. Thirdly, to examine effects of PA before and after the health education unit using exerciseguideline (17000 or 13000 steps/day) on 4th grade elementary school children (n=86). These results suggest that present program was able to increase PA in physically inactive children.