放松活动在体育课中的重要性浅析毕业论文(编辑修改稿)

放松活动在体育课中的重要性浅析毕业论文(编辑修改稿)内容摘要：

解学生心理 变化情况。 第三，分类。 （ 1）各项主教材练习负荷分类，即刻心率均值在 160～ 180 次／分之间的教材，称之为高强度教材。 如耐久跑、对抗竞争的比赛类、慢 快跑类等教材；即刻心率均值在 140～ 160 次／分之间的教材。 称为中强度教 材；如跳跃类、体操中的技巧、支撑跳跃等教材。 即刻心率均值在 124～ 140 次／分之间的教材，称为低强度的教材。 如投掷类、武术类和韵律活动等教 材。 （ 2）放松活动内容强度分类。 迪斯科舞蹈、慢跑步等放松练习的即刻心 率均值在 115～ 130 次／分之间，称 A 强度的放松练习；轻松的歌舞、动物模 仿动作及游戏时的即刻心率均值在 100～ 115 次／分之间，称 B 强度的放松练 习；深呼吸和自我按摩以及相互按摩的即刻心率均值在 90～ 100 次／ 分之 间，称 C 强度放松练习。 四、实验结果与分析 1．选用 C 强度放松练习 低强度的主教材通过 C 强度放松练习，课后五分钟心率接近安静水平； 高强度的主教材通过 C 强度放松练习，课后五分钟心率高于安静水平。 到课 后八分钟还未恢复。 出现上述情况的原因，一是放松练习强度不合适，二是练习中血液大量 流入四肢，引起大脑大量缺血，出现一丝不良反应。 2．选用 B 强度放松练习 高、中强度的主教材，通过 B 强度的放松练习，学生反应良好；低强度 主教材通过 B 强度放松练习，心率稍高，没有出现不良反应现象。 3．选用 A 强度的放松练习 高、中强度的主教材通过 A 强度的放松练习，学生的心率接近安静水平， 学生感到良好；低强度教材通过 A 强度的放松练习，课后学生心率偏高。 造 成的原因，主要是放松练习强度没有合理搭配而出现反常现象。 综上所述，放松活动的内容和主教材的性质有一定的关系。 五、结论与建议 1．放松活动的强度应根据课的主教材的练习强度而定，强则大，弱则小。 2．放松活动的内容要根据课的主教材性质选择，多劳部位多放松，全身 活动全身放松。 3．放松活动的手段、方式要根据学生的年龄、性别等特征选择，多采用 3 学生感兴趣的游 戏等放松练习。 4．有针对性的放松活动能帮助学生消除疲劳，促进体力恢复，提高学生 下节文化课的学习效率。 5．有针对性的放松活动。 能预防学生运动后的不良反应及运动损伤，保 证学生的身心健康。 A preliminary study of the rationality of scientific relaxation activities of primary school physical education Linghai Matsuyama Elementary School in Liaoning Province, Wang Bao First, the problem The relaxation activity is physical education to the end part of the main content. Its purpose is to reduce the cerebral cortex, the rise Fen, relax the muscles, so that the body gradually restored to the state of relative quiet. On students39。 physical and mental health plays a An active role. However, some schools PE relaxation activities made is not good, mainly in: The first part of the teachers in contempt, or simply not to anize the activities of the phenomenon have occurred. Original Some teachers in relaxing activities to the lack of scientific understanding that the relaxation activities can not afford much. Second, some teachers just relaxing activities as a job to deal with the matter. Original Due before class, do not do careful preparation, only going through the motions, seek practical results. Third, some teachers arrangements relaxing activities arbitrary, without regard to the basic content of the textbooks, Think what, what results is often counterproductive. In summary, the reasonableness of the relaxing activities of school physical education, scientific research has bee when Pressing problem of the former physical education reform. This paper attempts an early From a physiological point of view on the reasonable and scientific activities of the primary school physical education relax Further explore in order to facilitate to improve the effect of relaxing activities, to increase students39。 physical and mental health. Second, the experimental theoretical basis Theoretical basis for this article only from the physiological angle, relaxing activities. 1. The role of mitigation of cardiac ischemic Complete the basic task of teaching students the physical exertion, there will be varying degrees of physical and mental Fatigue. Especially in highintensity physical activity practice, most of the body39。 s blood distribution in the limbs And brain, the heart may be severe ischemia. Suddenly stop exercising will make the difficulties in venous return, broken Bad and normal blood circulation and may cause dizziness, nausea, severe cases can produce vomiting. Especially in the hot In the summer, and sometimes can also cause gravity shock. These phenomena are particularly prevalent in the longdistance teaching. Because This, after the 4 sport, the need to do some minor finishing activities as soon as possible to help the body39。 s blood Reflux and heart blood of normal output, eliminating the bad feelings. 2. The role of oxygen debt repayment Practice has proved that some of the physiological changes caused by the movement of the body, not with the movement to stop the same Disappear when. In the movement, the anism often adhere to the work in the absence of oxygen, regardless of the breathing how to add, Can not meet the needs of the movement of oxygen. In this case, the internal ans have to exercise following the Lack of oxygen in the continued extraordinary work to pensate for movement, if not in time to do relaxing activities, and suddenly at the In the stationary state。