Table 3.

Calculated and compared CO₂ reactivity during hypocapnia and hypercapnia as determined from the linear regression model

	ICA	VA	ECA	MCA	BA
Hypercapnic CO2 reactivivty (% mmHg−1)	4.86 ± 2.56*	2.79 ± 1.51†	1.30 ± 1.60	3.90 ± 1.60	3.10 ± 1.04†
Hypocapnic CO2 reactivivty (% mmHg−1)	2.03 ± 0.58	1.71 ± 0.72	0.51 ± 1.01	3.15 ± 1.01	1.78 ± 0.62

Values are means ± S.D. Different from hyporcapnia; †P < 0.05, *P < 0.01.