Table 3.

Forearm and systemic haemodynamics for subjects in aminophylline protocol

		Baseline			Dose 1			Dose 2			Dose 3
		FBF	MAP	HR	FBF	MAP	HR	FBF	MAP	HR	FBF	MAP	HR
ADO	Young	1.7 ± 0.3	91 ± 3	60 ± 5	4.5 ± 0.9	94 ± 4	58 ± 4	6.2 ± 0.9	95 ± 4	59 ± 4	7.0 ± 0.8	95 ± 5	58 ± 5
	Young + APH	2.0 ± 0.5	93 ± 4	57 ± 5	4.1 ± 0.9	98 ± 5	58 ± 4	4.8 ± 1.0	97 ± 5	57 ± 4	5.6 ± 1.2	98 ± 6	58 ± 4
	Older	1.2 ± 0.2	98 ± 5	57 ± 2	3.6 ± 0.8	99 ± 5	58 ± 2	4.8 ± 0.9	99 ± 5	57 ± 2	5.6 ± 1.1	100 ± 4	58 ± 2
	Older + APH	1.2 ± 0.3	102 ± 6	56 ± 2	2.9 ± 1.1	102 ± 6	56 ± 2	3.5 ± 1.4†	101 ± 6	56 ± 2	3.9 ± 1.5	102 ± 7	58 ± 2
ATP	Young	1.8 ± 0.3	92 ± 5	59 ± 5	5.8 ± 1.2	93 ± 4	59 ± 5	7.5 ± 1.5	93 ± 5	58 ± 5	9.1 ± 1.7	93 ± 5	59 ± 5
	Young + APH	2.0 ± 0.3	92 ± 5	58 ± 5	6.2 ± 1.0	98 ± 5	57 ± 4	7.3 ± 1.1	96 ± 5	59 ± 4	8.6 ± 1.2	97 ± 5	58 ± 4
	Older	1.3 ± 0.2	98 ± 3	58 ± 2	4.7 ± 0.9	98 ± 4	58 ± 1	5.8 ± 1.4	102 ± 5	57 ± 2	7.4 ± 1.1	99 ± 4	57 ± 2
	Older + APH	1.3 ± 0.2	98 ± 5	56 ± 1	4.6 ± 1.0	102 ± 5	56 ± 2	5.4 ± 1.1	102 ± 5	56 ± 2	6.5 ± 1.0	101 ± 6	57 ± 2

APH, aminophylline; ADO, adenosine; FBF, forearm blood flow (ml (100 ml)⁻¹ min⁻¹); MAP, mean arterial pressure (mmHg); HR, heart rate (beats min⁻¹).