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夏季是体育锻炼的好时光。暑假的时间较长,体育训练和比赛的任务也较重。但,夏季从事体育锻炼容易发生中暑。因此,体育教师应该掌握这方面的知识。 一、中暑的病因病理:在高温环境中运动时,将会出现以下情况:1.排汗量急剧增加,致使血液中的钠离子和氯离子的浓度大大降低,若得不到及时补充,则可引起肌肉痉挛。2.体内水和盐大量丢失,血管的扩张,血容量更显不足,从而引起体内循环的衰竭。3.可见光线和红外
Summer is a good time for physical activity. Summer vacation longer, the task of sports training and competition is also heavier. However, summer exercise is prone to stroke. Therefore, physical education teachers should master this knowledge. First, the etiology and pathology of heat stroke: exercise in high temperature environment, there will be the following: 1. Perspiration increased dramatically, resulting in the blood of sodium and chloride concentrations greatly reduced, if not timely replenishment, then Can cause muscle spasms. 2. The body of water and salt lost a lot, the expansion of blood vessels, blood volume is more inadequate, causing the body’s circulatory failure. 3 visible light and infrared