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海水浴是大多人最喜爱的运动,它对老年人及肥胖者尤为适宜。人体体表温度波动在32℃～34℃之间。夏季海水的水温波动在20℃～25℃之间。每当人们进行海水浴时,开始人体的皮肤毛细血管收缩、皮肤汗腺及毛孔关闭,借以抵御外寒的刺激。这时血液流向内脏,皮肤呈现苍白,血压略有升高,并感到寒冷。随着运动的增加,皮肤血管又复舒张,血液流向皮肤,使皮肤呈红色,血压恢复正常,汗腺及毛孔以随之略有开放。人体经常受到这样的锻炼,从而增强了机体对寒冷的应激性能,提高机体预防感冒的能力,可减少呼吸道疾病的发生。人在海水中游泳时,受到海水的压力和波浪的冲击、拍打,对机体周围的静脉和淋巴系统发生轻度压缩作用,可改变回流体内血液的分布,对心肺
Thalassotherapy is the favorite sport for most people and is particularly suitable for the elderly and obese people. Human body surface temperature fluctuations between 32 ℃ ~ 34 ℃. Summer sea water temperature fluctuations between 20 ℃ ~ 25 ℃. Whenever people to the sea when the bath began to shrink the body’s capillaries, sweat glands and pores of the skin closed, in order to resist the cold stimulation. At this time the blood flow to the viscera, the skin pale, slightly elevated blood pressure, and feel cold. With the increase of exercise, the skin and blood vessels are relieved and the blood flows to the skin, leaving the skin red and the blood pressure returned to normal. The sweat glands and pores are slightly opened. The human body is often subjected to such exercise, thereby enhancing the body’s cold stress performance, improve the body’s ability to prevent colds, can reduce the incidence of respiratory diseases. When swimming in seawater, the sea water pressure and wave impact, flapping, the body of the venous and lymphatic system occurred mild compression, can change the distribution of blood back to the body, heart and lung