Table 2. Baseline and change from baseline (CfB) (After - Before) data of serum calciotropic hormones and Ca+ levels in different groups of postmenopausal women. Data are means (±SD).

Variables		E + S (n = 14) 1	E (n = 14) 2	S (n = 14) 3	CON (n = 14) 4	P <
PTH (pmol·ml-1)	Baseline	7.4 (42)	42.2(5.9)	42.3 (8.6)	42.1 (6.9)	.978
	CfB	-23.6 (8.2)† 2,3,4	-14.9 (12.5) † 1,3,4	6.9 (12.7) 1,2,4	8.3 (9.9) 1,2,3	.001
CT (pg·ml-1)	Baseline	1.3 (.4)	1.3 (.6)	1.3 (.5)	1.3 (.7)	.690
	CfB	19.3 (6.7) † 2,3,4	13.7 (6.6) † 1,3,4	7.8 (3.6) † 1,2,4	-.2 (.4) 1,2,3	.001
Ca2+ (mmol·ml-1)	Baseline	1.2 (.4)	1.2 (.4)	1.2 (.2)	1.2 (.5)	.941
	CfB	-.0 (.5)	-.1 (.6)	-.1 (.7)	.1 (.3)	.619
Estrogen (pg·ml-1)	Baseline	14.3 (4.6)	15.2 (6.4)	14.5 (6.6)	13.0 (4.0)	.0712
	CfB	11.1 (3.1) † 2,3,4	7.3 (1.1) † 1,3,4	2.2 (3.2)	-2.8 (1.7)	.024

E+S= Exercise + Supplement; E= Exercise; S= Supplement; Con= Control; CfB = Change from Baseline; PTH= Parathyroid Hormone; CT= Calcitonin; Ca= Ionized Calcium. Superscripts denote significantly differences among the groups.†  p < 0.05, significantly different from baseline values (within groups, baseline week 16).