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。体育课应首先从锻炼学生身体,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强度的作用下,机体反映出来的生理机能变化。只有将体育课的运动负荷安排得科学、适宜、才能发展和改善学生的身体素质和运动能力,达到增强体质的目的。多年来,人们都是以运动负 Physical education is to achieve the purpose of school sports, the basic way of mission, is the basic form of school physical education. Physical education should start from the physical exercise of students to enhance the physical effects of students starting to achieve the purpose of effectively enhancing the physical constitution of students, a reasonable arrangement of exercise load is an important factor. The exercise load of PE class refers to the change of physiological function reflected by the body under the action of the load and the load intensity of the body when the students do exercises in class. Only by arranging the exercise load of the physical education class to be scientific and appropriate can we develop and improve the students’ physical and athletic ability and achieve the purpose of enhancing physical fitness. For years, people have been negative for sports