Table 2.

Differences of irisin and metabolic variables before and after six months of physical exercise.

Variables		Before exercise mean ± SD	After exercise mean ± SD	P value
BMI (kg/m2)	Normal weight	23.00 ± 0.62	22.65 ± 0.88	0.091
	Obese	42.98 ± 1.80	35.85 ± 1.66	0.0001
WC (cm)	Normal weight	76.31 ± 0.80	75.94 ± 0.78	0.103
	Obese	104.16 ± 3.98	100.11 ± 3.09	0.0001
FBS (mmol/l)	Normal weight	4.71 ± 0.10	4.17 ± 0.08	0.0001
	Obese	6.98 ± 0.19	6.11 ± 0.08	0.0001
Insulin (ng/ml)	Normal weight	7.83 ± 0.87	5.04 ± 0.69	0.0001
	Obese	24.48 ± 2.72	16.14 ± 2.81	0.0001
HOMA-IR	Normal weight	1.60 ± 0.20	1.26 ± 0.14	0.0001
	Obese	7.57 ± 1.18	4.13 ± 0.51	0.0001
HOMA-B2	Normal weight	129.98 ± 17.47	152.19 ± 30.66	0.001
	Obese	140.92 ± 17.59	123.27 ± 20.59	0.001
Irisin (ng/ml)	Normal weight	87.54 ± 6.08	97.39 ± 5.68	0.0001
	Obese	91.10 ± 4.71	139.50 ± 6.96	0.0001