A manual labourer moves in March from Kashmir to Delhi and becomes acclimatized by working outdoors for a month. Compared with his responses on the first few days in the Delhi, for the same activity level after acclimatize on one would expect higher: (A) Core temperature, (B) Hea rate, (C) Sweating rate, (D) Sweat salt concentration
Answer is C. The classic changes observed in heat acclimatization are lower hea rate during exercise; an increased sweating response; a lower core temperature during exercise, which is due to both the increased sweating response a lower thermoregulatory set point.