| Heat acclimation increases the local heat loss responses of sweating and skin blood flow which is thought to persist for up to 3 weeks post-acclimation. However, the extent to which increases in local heat loss affect whole-body heat loss as a function of increasing levels of heat stress remains unresolved. Using direct calorimetry, we examined changes in whole-body evaporative heat loss (EHL) during progressive increases in metabolic heat production 1) prior to (Day 0), during (Day 7) and following a 14-day heat acclimation protocol (Day 14) -- Induction phase, and; 2) at the end of a 1-week (Day 21) and 2-week decay period (Day 28) -- Decay phase. Ten males performed intermittent exercise (3 x 30- min (min) bouts of cycling at 300 (Ex1), 350 (Ex2), and 400 watts&... |
