Table 1.

The influence of 40-min submaximal running at 65% O_2max in temperate conditions followed by post-exercise hot water immersion in 40°C water on thermoregulatory variables, heart rate and immersion time in endurance trained and recreationally active participants.

	Endurance trained		Recreationally active
	Day 1	Day 6	Day 1	Day 6
Submaximal exercise
End-exercise Tre (°C)	38.37 ± 0.48	38.27 ± 0.43	38.34 ± 0.32	38.22 ± 0.23
End-exercise heart rate (beats min-1)∗	147 ± 13	144 ± 10	150 ± 9	144 ± 9
Hot water immersion
End-immersion Tre (°C)	39.44 ± 0.44	39.36 ± 0.31	39.15 ± 0.18	39.21 ± 0.20
Immersion time (min)∗∗	35 ± 8	40 ± 0	28 ± 5	40 ± 1
n completing 40-min immersion	5 of 8	8 of 8	0 of 8	7 of 8
Submaximal exercise and hot water immersion
WBSR (L ⋅ h-1)∗ #	1.08 ± 0.34	1.25 ± 0.26	0.72 ± 0.17	0.95 ± 0.18
AUC (°C ⋅ min-1)	33 ± 24	29 ± 15	18 ± 7	20 ± 7

T_re, rectal temperature; AUC, area under the curve. ^∗P < 0.05 and ^∗∗P < 0.01, main effect of time. ^#P < 0.05, main effect of group. Data displayed as mean ± SD.