
Keywords: وزن مخصوص ادرار; ANOVA; Analysis of variance; D2O; Deuterium oxide; [D2O]; Concentration of deuterium oxide; ppm; Parts per million; USG; Urine specific gravity; VO2max; Maximal oxygen uptake; Deuterium oxide; Thermoregulation; Sweat; Fluid transition; Eccrine gland;