Table 1.

Haemodynamic and temperature responses under each condition at baseline and during 30 mmHg lower-body negative pressure (LBNP)

	Normothermia		Heat stress		Heat stress and colloid Infusion
	Baseline	LBNP	Baseline	LBNP	Baseline	LBNP
MAP (mmHg)	82 ± 7	81 ± 6	76 ± 7	63 ± 7*	77 ± 3	71 ± 4*
Heart Rate (bpm)	55 ± 5	64 ± 8	92 ± 9†	125 ± 20*	93 ± 9†	98 ± 6
Skin Temp (°C)	34.4 ± 0.3	34.4 ± 0.2	37.9 ± 0.2†	37.5 ± 0.1*	37.7 ± 0.4†	37.3 ± 0.2*
Core Temp (°C)	37.0 ± 0.3	37.0 ± 0.2	38.0 ± 0.18†	38.2 ± 0.21*	38.3 ± 0.3†‡	38.3 ± 0.28
Mean Body Temp (°C)	36.7 ± 0.3	36.7 ± 0.2	38.0 ± 0.2†	38.1 ± 0.2*	38.2 ± 0.3†‡	38.2 ± 0.3
CVP (mmHg)	6.6 ± 2.5	0.9 ± 2.5*	2.1 ± 2.6†	−0.7 ± 2.7*	5.3 ± 2.3†‡	0.8 ± 2.6*

MAP, Mean arterial pressure; CVP, central venous pressure; Temp, temperature.

^†Different from normothermia baseline condition (P < 0.05).

^‡Different from heat stress baseline condition (P < 0.05).

^*Different from baseline within the respective thermal condition, i.e. within normothermia, heat stress, or volume infusion; P < 0.05).