Table 2.

Osteocalcin, CTX-1 and irisin level in serum at the end of experiment.

	Osteocalcin (pg/ml)	CTX-1 (ng/ml)	Irisin (ng/ml)
CD	0.141 ± 0.008	0.119 ± 0.008	2.129 ± 0.089
HFD	0.097 ± 0.007*	0.179 ± 0.01*	1.377 ± 0.113*
HEx	0.124 ± 0.011†	0.143 ± 0.018†	1.922 ± 0.213†

Data are presented as mean ± SE.

* p < 0.05 vs. ND group

† p < 0.05 vs. HFD group by one way ANOVA. CD, control diet; HFD, high-fat diet; HEx, high-fat diet and swimming exercise; CTX-1, C-telopeptide of type I collagen.