Table 2.

Measurements of respiratory frequency before, and for 60 min after episodic hypoxia at various intensities

Protocol	Baseline	15 min	30 min	45 min	60 min
Severe (n = 8)	24 ± 2.3	28 ± 3.6*	30 ± 3.6*	32 ± 3.2*	34 ± 3.3*
Moderate (n = 6)	25 ± 3.4	26 ± 2.4	29 ± 2.5	31 ± 2.7*	34 ± 3.1*
Mild (n = 10)	24 ± 2.0	25 ± 2.4	27 ± 2.6	29 ± 2.7*	30 ± 2.4*

Values are means ± s.e.m. Severe, mild and moderate hypoxia measured in bursts per minute.

^*P < 0.05, significantly different compared to baseline.