Table 1.

Systemic haemodynamic and ventilatory responses

	Rest	Normoxic exercise	Rest	Steady-state hypoxia	Hypoxic exercise
Control
MAP (mmHg)	95 ± 2	98 ± 3	94 ± 2	98 ± 4	100 ± 3†
HR (beats min−1)	56 ± 2	58 ± 2	57 ± 3	70 ± 3†	72 ± 3†§
(%)	97 ± 0	97 ± 0	98 ± 0	84 ± 1†	84 ± 1†§
Minute vent. (l min−1; BTPS)	9.0 ± 1.2	9.6 ± 0.9	9.7 ± 1.3	15.0 ± 2.2†	18.1 ± 2.5†§
End-tidal CO2 (mmHg)	36.6 ± 1.5	38.1 ± 0.9	36.9 ± 1.4	37.5 ± 1.1	38.6 ± 1.2
NO–PG block
MAP (mmHg)	97 ± 2	99 ± 2	97 ± 2	100 ± 3	101 ± 3
HR (beats min−1)	55 ± 2	58 ± 2	53 ± 2*	64 ± 3*†	70 ± 3†§
(%)	97 ± 0	97 ± 0	98 ± 0	84 ± 1†	84 ± 1†§
Minute vent. (l min−1; BTPS)	11.0 ± 1.2	11.0 ± 0.5	10.9 ± 1.1	20.1 ± 3.2*†	21.2 ± 2.0*†§
End-tidal CO2 (mmHg)	36.2 ± 1.3	37.4 ± 0.9	36.0 ± 1.3	37.5 ± 1.1	38.4 ± 1.1

: oxygen saturation via pulse oximetry