Table 1.

Effects of exposure to chronic intermittent hypoxia (CIH) on mean arterial pressure (MAP), heart rate (HR), splanchnic sympathetic nerve activity (SNA) and autonomic contributions to MAP and HR

Group	n	SNA (μV)	MAP (mmHg)	HR (bpm)	Change in MAP (mmHg)	Change in HR (bpm)
Control	16	2.4 ± 0.1	113 ± 4	355 ± 7	−48 ± 4	−68 ± 6
CIH	19	3.6 ± 0.3*	122 ± 3*	357 ± 6	−60 ± 3*	−110 ± 4*

All values are expressed as means ±s.e.m. Changes in MAP and HR are decreases with autonomic ganglionic blockade.

^*Significantly different from control rats, P < 0.05, unpaired t test.