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本研究观察了１３名男性青年身着全身式防毒服，在热室（干球温度３４．２℃）内以５．４ｋｍ的时速行走，至自觉不能忍受再坚持２００ｍ时为止，其汗液中主要营养成分的流失情况。结果行走时间为５８．２±２．９ｍｉｎ，平均体温３７．８±０．１℃，心率１５１．３±８．０ｂｐｍ，出汗量仅７８０．５±７５．２ｇ。全身汗液中Ｋ、Ｎａ、Ｃａ，Ｍｇ、Ｆｅ、Ｃｕ、Ｚｎ浓度分别为１２．３±１．８、１１３．０±７．０、０．８±０．１３、０．９±０．２０、０．０２７±０．００４、０．００５±０．００１、０．０３５±０．００２ｍｍｏｌ／Ｌ，血清Ｋ、Ｚｎ浓度降低，且Ｚｎ低于正常水平。每升汗液中氨基酸总量为１０８５５±６７９μｍｏｌ／Ｌ；必需氨基酸占２１．２％，其中以赖氨酸最高，为１０３８．５±９０．７μｍｏｌ／Ｌ，蛋氨酸最低，为４９．８±４．０μｍｏｌ／Ｌ；非必需氨基酸以丝氨酸、甘氨酸最高，分别为２７７４．３±１７９．０和１５７２．１±８３．９μｍｏｌ／Ｌ；胱氨酸最低，为４．８±０．９μｍｏｌ／Ｌ。汗液中维生素Ｂ１、Ｂ２、Ｃ仅分别为４５２±２２０、３１２±１７４和３３３０±１２００μｇ／Ｌ。
In this study, 13 male youths were dressed in a full-body protective suit and walked at a speed of 5.4km per minute in a hot chamber (dry-bulb temperature of 34.2 ℃) until they could not tolerate them for another 200m. The main male sweat The loss of nutrients. Results The walking time was 58.2 ± 2.9min, the average body temperature was 37.8 ± 0.1 ℃, the heart rate was 151.3 ± 8.0bpm and the sweating volume was only 780.5 ± 75.2g. The concentrations of K, Na, Ca, Mg, Fe, Cu and Zn in whole body sweat were 12.3 ± 1.8, 113.0 ± 7.0, 0.8 ± 0.13 and 0.9 ± 0.20 respectively , 0.027 ± 0.004, 0.005 ± 0.001, 0.035 ± 0.002mmol / L, serum K, Zn concentration decreased, and Zn below normal levels. The total amount of amino acids per liter of sweat was 10855 ± 679μmol / L, while that of essential amino acids was 21.2%. The highest lysine was 1038.5 ± 90.7μmol / L and the lowest methionine was 49.8 ± 4. 0μmol / L; nonessential amino acids serine, glycine highest, respectively, 2774.3 ± 179.0 and 1572.1 ± 83.9μmol / L; cystine minimum, 4.8 ± 0.9μmol / L. Sweat vitamin B1, B2, C were only 452 ± 220,312 ± 174 and 3330 ± 1200μg / L.