Table 2. Core temperature (°C) during 30 min of continuous submaximal cycling exercise (SMT) in the heat and during session 1 and session 5 of high intensity, interval training (HIIT) in room temperature (Con) or hot (Acc) conditions. Values are (mean ± SD) (95% CI).
Con Group Acc Group
Resting End Exercise Resting End Exercise
SMT Pre HIITa 37.0 (.2)
(36.6-37.4)
38.3 (.2)
(38.0-38.7)
36.9 (.3)
(36.7-37.1)
38.3 (.3)
(38.1-38.5)
SMT Post HIIT 36.7 (.4)
(36.2-37.3)
38.1 (.4)
(37.6-38.6)
37.0 (.3)
(36.8-37.2)
38.2 (.3)
(38.0-38.4)
HIIT 1b 36.9 (.3)
(36.6-37.3)
37.8 (..5)
(37.4-38.1)
36.8 (.8)
(36.1-37.4)
38.0 (.5)
(37.5-38.4)
HIIT 5 37.1 (.3)
(36.7-37.4)
37.9 (.5)
(37.4-38.3)
37.0 (.3)
(36.7-37.3)
38.0 (.3)
(37.7-38.4)
n= 7 per group (HIIT), n = 7 Acc and n = 5 Con (SMT). Acc: acclimation, Con: Control.
a significant main effect for time (p = 0.000; partial eta2 = 0.97).
b significant main effect for time (p = 0.000; partial eta2 = 0.92).