Table 1.

Altered plasma metabolites between male and female rats in the control, exhaustive exercise and recovery groups (n=10).

	Compounds	RT(min)	VIP	MC/FC		MS-d10/FS-d10		MR-d7/FR-d7
				FC	p	FC	p	FC	p
Amino acid	Valine	7.68	1.57			2.80	<0.001	2.80	<0.001
	Leucine	8.48	1.63			2.80	<0.001	2.80	<0.001
Fatty acid	Linoleic acid	27.65	1.62			2.35	0.002
	Oleic acid	27.73	1.84	0.46	0.005	2.29	0.003	2.11	0.007
Organic aid	3-Hydroxybutyric acid	6.88	2.14	0.45	0.004	2.80	<0.001	2.80	<0.001
	Citric acid	19.91	1.78	0.37	<0.001	2.80	<0.001	2.64	<0.001
Other metabolites	Phosphate	8.65	1.61			2.80	<0.001	2.80	<0.001

RT: The retention time of each compound from GC-MS; VIP: Variable importance in the project; FC: Fold change. Mean ranks were calculated using the nonparametric Wilcoxon-Mann-Whitey test by SPSS 18.0, and FC was obtained by comparing those metabolites’ mean ranks between male and female rats in control, exhaustive exercise and recovery group. FC with a value >1 indicates a relatively higher level present in male rats as compared to the female rats, while a value <1 means a relatively lower level in male rats as compared to the female rats. S-d10: 10 days swimming group (exhaustive exercise group); R-d7: 7 days recovery group; p: Correlation coefficient from Mann-Whitney test. p<0.05 means the change is significant.