Table 1.

Plasma amino acid concentration on Day 8

	before TT and before intake		after TT and after intake
	Placebo	L-Citrulline	Placebo	L-Citrulline
L-Citrulline (nmol/ml)	39.3 ± 1.4	54.3 ± 11.0	40.0 ± 1.4	475 ± 37**
L-Arginine (nmol/ml)	110 ± 4	139 ± 7**	110 ± 4	192 ± 9**
BCAA (nmol/ml) (valine, isoleucine, leucine)	565 ± 15	553 ± 21*	518 ± 20	501 ± 15*

Values are means ± S.E.M. n = 22, ^* p < 0.05, ^** p < 0.001, indicating a significant difference from placebo