耐久跑是体育课的基本教学内容之一。在教学之前,教师应向学生讲清楚练习时可能出现的一些人体生理上的正常反应及对付的办法,以消除学生练习时的恐惧心理。一、肌肉酸痛。学生初练长跑,由于下肢肌肉活动频繁,负荷过大,氧气供应不足,使肌肉里堆聚了大量的代谢产物——乳酸,刺激神经而造成肌肉酸痛。只要合理安排运动量,调整好锻炼计划,持之以恒地坚持练习或稍休息几天,做做按摩、热敷,疼痛即可减轻,甚至消失。二、胸肋疼痛。学生跑步时由于呼吸方法不正确(呼吸表浅,急促),使呼吸肌过度紧张和疲劳,引起呼吸肌痉挛,刺激呼吸肌的神经感受器,而造成胸部两侧或左右肋下刺痛,遇到这种情况,只要适当减慢跑速,注意加大呼吸的深度,并用力向外呼气,使呼吸肌得到放松,或用手按摩、抵住疼痛部 Durable running is one of the basic teaching content of physical education. Before teaching, teachers should make clear to the students some physical reactions that may occur during practice and how to deal with them so as to eliminate the fear of students when practicing. First, muscle soreness. Students practice long-distance running, due to frequent lower extremity muscle activity, excessive load, lack of oxygen supply, the muscle mass accumulation of a large number of metabolites - lactic acid, stimulate the nerves and muscle soreness. As long as a reasonable amount of exercise, adjust the exercise plan, persevere in practice or a few days rest, doing massage, heat, pain can be reduced, or even disappear. Second, chest pain. Students due to improper breathing method (breathing shallow, rapid), so that excessive muscle tension and fatigue of the respiratory muscles, causing respiratory muscle spasm, stimulate the respiratory muscles of the nerve receptors, resulting in the chest on both sides of the ribs or ribs, encountered This situation, as long as the appropriate slow down speed, pay attention to increase the depth of breathing, and exhaled exhausted, so that breathing muscle to relax, or massage hand, hit the pain Department