Table 2.

Heart rate and blood pressure, prior to and during normoxic and hypoxic gas breathing, with and without sympathetic inhibition (48 h transdermal clonidine)

	Normoxia ( = 0.21)				Hypoxia ( = 0.11)
	No clonidine		Clonidine		No clonidine		With clonidine
	Prior to	During	Prior to	During	Prior to	During	Prior to	During
HR (b min−1)	59 ± 3	68 ± 2	55 ± 4	61 ± 3	57 ± 2	84 ± 4	49 ± 2	76 ± 3
SBP (mmHg)	120 ± 3	124 ± 3	110 ± 3	114 ± 3	123 ± 3	122 ± 2	113 ± 3	125 ± 9
DBP (mmHg)	72 ± 2	71 ± 2	67 ± 3	64 ± 3	75 ± 3	68 ± 2	66 ± 2	63 ± 2

Data are means ± SEM. ‘Prior to’ data collected before breathing normoxic or hypoxic gas. ‘During’ data are averaged values collected throughout the entire hyperinsulinaemic euglycaemic clamp procedure (180 min). See text for details pertaining to statistical analysis. SBP: systolic blood pressure. DBP: diastolic blood pressure.