the urinary excretion of dihydroxyphenylalanine ( dopa ) , catecholamines ( ca ) [ dopamine ( da ) , norepinephrine ( ne ) , and epinephrine ( e ) ] , their 3-o-methylated derivatives [ 3-o-methyldopamine ( 3-mt ) , normetanephrine ( nmn ) , and metanephrine ( mn ) ] , and their deaminated metabolites [ dihydroxyphenylacetic acid ( dopac ) and vanilmandelic acid ( vma ) ] was studied in six healthy men , at rest during short-term ( 15 min ) or exhaustive submaximal exercise , and in the 2-h postexercise recovery period .
C0007412
catecholamines
C0013030
dopamine