游泳是人们所喜爱的体育运动,夏季游泳既能使人凉爽舒适,焕发精神,又可锻炼人们的意志,增强体质。但在游泳时如不注意卫生与安全,容易招致一些疾病或事故的发生。一、下水前要做好充分的准备工作,防止抽筋。如用手揉捏、拍打或捶击容易抽筋的部位,使之松弛,也可采用按摩法进行调整。常发生的部位是小腿和大腿,有时手指、脚趾甚至胃部也会发生。万一游泳时发生这种情况,应保持镇静,不要慌张,慢慢游到岸边,松弛痉挛部位,直至抽筋缓解,方可再下水。二、在睡眠不足,空腹或身体过于疲劳的情况去游 Swimming is one of the favorite sports, swimming in summer can both make people cool and comfortable, full of energy, but also exercise people’s will and enhance physical fitness. However, when swimming, paying no attention to hygiene and safety can easily lead to some diseases or accidents. First, to be fully prepared before launching, to prevent cramps. Such as hand kneading, patting or thrashing easily cramps parts, so that relaxation, massage method can also be used to adjust. Often the site is the lower leg and thigh, sometimes the fingers, toes and even the stomach will happen. In case of such a situation when swimming, should be kept calm, do not panic, slowly swim to the shore, relax spasm, until cramps ease before they can launch. Second, in lack of sleep, fasting or the body is too tired to travel