案例背景:引体向上是《国家体质健康标准》中规定必测的项目之一,更是发展学生手臂力量的重要项目之一。在组织学生进行体质健康引体向上这个项目测试时,初中男生一半左右的人,引体向上一个都做不了,这让学生大呼“太难”。初中生正处于发育期间,肌纤维较细,肌力较弱,上肢力量普遍不足,如何提升学生引体向上的成绩是我们体育教师需要思考的问题。根据引体向上的动作要点,结合学生的实际情况来,激发学生的积极性制定了相应的练习。针对初一学生的心理生理 Case Background: Pull-up is one of the items that must be tested in “National Physical Health Standard”, and it is also one of the important items for developing the arm strength of students. When organizing students to take a test of physical fitness upwards, about half of junior middle school boys and primary school students can not do anything. This makes students shout “too hard.” Junior high school students are in the developmental period, the thinner muscle fibers, muscle weakness, upper extremity strength generally inadequate, how to improve the students pull-up performance is our physical education teachers need to think about. According to the pull-up point of action, combined with the actual situation of students to stimulate the enthusiasm of students to develop the corresponding practice. Psychology and physiology for first-year students