Table 1.

Heart rate (HR) and blood (lactate) responses following infusion of l-NAME compared to control

	Baseline HR		End-exercise HR		ΔbLOOD (lactate)
Subject number	Control	l-NAME	Control	l-NAME	Control	l-NAME
	(beats min−1)		(beats min−1)		(mm)
1	94	73	115	108	0.7	0.6
2	66	65	107	113	0.1	0.1
3	76	65	113	107	0.5	0.3
4	100	72	127	109	0.0	−0.2
5	88	75	125	115	0.1	−0.1
6	87	67	109	105	0.3	0.4
7	84	77	109	107	−0.2	−0.5
Mean	85	71*	115	109	0.2	0.1
s.e.m.	4	2	3	1	0.1	0.1

^*Significantly different from control condition (P < 0.01).