Késang: Béda antarrépisi
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Baris ka-7:
Sweat is not pure water; it always contains a small amount (0.2 - 1%) of solute . When a person moves from a cold climate to a hot climate, adaptive changes occur in their sweating mechanism. These are referred to as acclimatisation: the maximum rate of sweating increases and its solute composition decreases. The daily water loss in sweat is very variable: from 100 to 8,000 mls/day. The solute loss can be as much as 350 mmols/day (or 90 mmols/day acclimatised) of sodium under the most extreme conditions. In a cool climate & in the absence of exercise, sodium loss can be very low (less than 5 mmols/day). [Na+] in sweat is 30-65 mmol/l depending on degree of acclimatisation.
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== Kandungan ==
Kandungan utama késang taya lian ti cai salaku pangleyur, nu eusina [[mineral]], [[laktat]], jeung [[uréa]]. Kandungan mineral gumantung kana aklimatisasi panas, sumber setrés (olahraga, sauna, jsb.), lilana, jeung kandungan mineral dina awak nu unggal jalma béda-béda. Indikasi kandungan mineralna nyaéta [[natrium]] 0,9 g/l, [[kalium]] 0,2 g/l, [[kalsium]] 0,015 g/l, jeung [[magnésium]] 0,0013 g/l<ref>[http://www.ncbi.nlm.nih.gov/pubmed/18156662 Sweat mineral-element responses during 7 h of exer...[Int J Sport Nutr Exerc Metab. 2007] - PubMed Result]</ref>. Lian ti éta, aya ogé unsur-unsur renik, di antarana [[séng]] (0,4 mg/l), [[tambaga]] (0,3 - 0,8 mg/l), [[beusi]] (1 mg/l), [[kromium]] (0,1 mg/l), [[nikel]] (0,05 mg/l), jeung [[timbal]] (0,05 mg/l)<ref>Cohn JR, Emmett EA, The excretion of trace metals in human sweat., Ann Clin Lab Sci. 1978 Jul-Aug;8(4):270-5., http://www.ncbi.nlm.nih.gov/pubmed/686643 </ref> <ref>Saraymen et al., Sweat Copper, Zinc, Iron, Magnesium and Chomium levels in national westler. 1973</ref>. Dina awak manusa, késang téh hiposmotik rélatif ka plasma <ref>BRS Physiology 4th edition, Linda S. Constanzo, hal. 155</ref>.
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== Rujukan ==
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