Table 3.

Total urinary excretion of sulfur amino acids and serine during the testing period^{a, b}.

	CHO		CHO+PROT
Urinary amino acids, μmol/18h	Mean	SD	Mean	SD	p
Methionine	2.96	1.0	2.89	0.92	0.81
tHcy	4.73	3.66	4.71	2.77	0.97
Cystathionine	22.3	16.7	32.8	18.5	<0.01
tCys	300	78.6	300	68.1	0.97
Taurine	1443	641	2124	1324	0.11
tGSH	1.0	0.3	1.3	0.5	0.03
Serine	523	88.5	575	117	0.10

^aTotal excretion of amino acids from immediately after the exhaustive exercise test and up to the performance test.

^bCHO, carbohydrate supplement drink; CHO+PROT, carbohydrate and protein supplement drink; tHcy, total homocysteine; tCys, total cysteine; tGSH, total glutathione.