研究的目的与意义近两年来,我们从有关文献和中学体育教学资料中,了解到巡回练习法可以提高体育课的练习密度和运动量,有利于完成增强学生体质的任务。可是,如何选择巡回练习的内容并合理安排其练习顺序?练习次数与周数以及间歇时间应多少为宜?它们有何科学依据?在我们所看到的有关文献中比较少见。为此,寻求巡回练习设计的科学依据, The Purpose and Significance of the Study In the past two years, we learned from relevant literature and middle school PE teaching materials that the touring practice method can improve the practice density and physical activity of physical education, which is conducive to completing the task of enhancing students’ physical fitness. However, how to choose the content of touring exercises and arrange their practice sequence rationally? How many times should be the number of weeks and weekdays? What is the scientific basis for them? It is relatively rare in the literature we have seen. To this end, seeking a scientific basis for circuit design practice,