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游泳是夏季最适宜的一种健身运动,尤其老年人,经常参加游泳锻炼,对延缓身体衰老具有明显的作用。 人在水中游泳,水温比体温低,水的导热性比空气高25倍,在12℃的水里停留4分钟所消耗的热能,相当于在同温度的空气中1小时所消耗的热能。这对于肥胖的中老年人来说,是一种最好的“消化”多余热能的方法。同时,由于热能的大量消耗,就需要身体加快新陈代谢,补偿热量的损
Swimming is the most suitable summer fitness exercise, especially the elderly, often participate in swimming exercise, to delay the body has a significant role in aging. Swimming in the water, the water temperature is lower than the body temperature, the thermal conductivity of water 25 times higher than the air, in the 12 ℃ water to stay 4 minutes of heat consumed, the equivalent of 1 hour in the air temperature with the heat consumed. This is one of the best ways for obese older people to “digest” excess heat. At the same time, due to the large amount of heat consumed, it is necessary for the body to speed up metabolism and compensate for heat loss