体育课是实现学校体育目的、任务的基本途径 ,是学校体育工作的基本形式。体育课应从锻炼学生身体 ,增强学生体质的实际效果出发。若要达到有效地增强学生体质的目的 ,合理地安排好运动负荷是一个重要因素。体育课的运动负荷是指学生在课上做练习时 ,在机体承受的负荷量和负荷 Physical education is to achieve the purpose of school sports, the basic way of mission, is the basic form of school sports. Physical education should exercise from the students body, enhance students the actual effect of constitution. To achieve the purpose of effectively enhancing students’ physical constitution, it is an important factor to arrange exercise load reasonably. The physical exercise load refers to the students in the class to do exercises, the body to withstand the load and load