Functions and characteristics of the skin of water exercise practitioners, and effects of preventive care using mildly acidic water

对水上运动指导员皮肤的功能和特点进行了研究，验证了使用中酸性水进行预防护理的效果。本研究对8名水上运动指导员进行干预，每次水上运动后1个月，每名指导员一侧前臂、1条小腿各注入1升微酸性水进行干预。比较干预前后左前臂和左下臂、右前臂和右下臂未干预的角质层含水率、pH值、前臂和小腿的经皮失水(TEWL)，结果发现水上运动练习者皮肤干燥，屏障功能降低。此外，研究表明，每次水上运动后继续使用中等酸性的水可以防止TEWL的增加。

We studied the functions and characteristics of the skin of water exercise instructors, and verified the effects of preventive care using mildly acidic water. The study was conducted on 8 water exercise instructors, to whom was made the intervention of pouring mildly acidic water, 1 liter each on one forearm and one lower leg for each instructor, after each water exercise, over a period of 1 month. Comparing the left forearms and the left lower on which interventions were made, with the right forearms and the right lower which underwent no intervention, we measured the water content of the stratum corneum,pH,transepidermal water loss(TEWL) of the forearms and the lower legs, before and after each intervention; as a result, we clearly found cutaneous dryness and decreased barrier functions in water exercise practitioners. In addition, the study suggested that the continuous use of mildly acidic water after each water exercise could prevent TEWL from increasing.