Table 2.

HR, SV, CO, MAP and gCBF at baseline and during 20% increments of the maximal apnoea

	HR (beats min–1)	SV (ml)	CO (mmol L–1)	MAP (mmHg)	gCBF (ml min–1)
Baseline	64±11	108 ± 21	6.78 ± 1.65	88±8	610 ± 153
20%	80±17*	58 ± 16*	4.52 ± 1.47*	92±10	469 ± 140*
40%	77±16*	62 ± 13*	4.54 ± 1.03*	99±11*	613 ± 196
60%	66±16	81 ± 15*	5.11 ± 1.46*	115±21*	828 ± 267*
80%	59±14	95 ± 18	5.41 ± 1.52*	131±21*	991 ± 325*
100%	56±15	96 ± 33	5.17 ± 1.91*	139±23*	1041 ± 318*

^*Significant difference from baseline.