Table 3.

Intervention group difference.

	Intervention-Naive (n=17)		Intervention – Experienced (n=11)
	M	SD	M	SD	dcohen	d 95% Confidence Interval	T test	P- value
Age (years)	13.38	0.53	15.11	1.40	12.13b		-3.62a	*<0.001
Height (cm)	161.27	11.39	167.73	8.07	0.25	-0.28 to 0.78	1.63	0.116
Weight (kg)	57.88	13.66	66.84	15.82	12.10b		1.53a	0.134
T4
Mass (g/cm)	2.87	0.52	3.54	0.61	1.18	0.61 to 1.75	-3.14	*0.004
Total area (mm2)	1100.74	164.81	1211.21	199.90	0.60	0.07 to 1.14	-1.59	0.123
Total density (mg/cm3)	261.19	29.28	293.55	24.20	4.93	3.88 to 5.98	-3.05	*0.005
Trabecular density (mg/cm3)	224.86	35.50	249.75	22.18	0.84	0.29 to 1.39	-2.07	*0.048
Trabecular density Z-score	0.38	1.58	0.25	1.05	-0.10	-0.62 to 0.43	-1.28	0.212
T66
Mass (g/cm)	2.88	0.52	3.57	0.49	1.37	0.78 to 1.95	-3.56	*0.001
Total area (mm2)	616.58	161.00	612.00	122.12	12.11b		-0.21a	0.853
Cortical density (mg/cm3)	1022.87	49.65	1061.69	44.79	12.12b		-2.19a	*0.029
Cortical area (mm2)	207.11	58.15	278.50	36.68	12.13b		-3.65a	*<0.001
SSI (mm3)	1639.67	323.05	1910.04	374.69	0.77	0.23 to 1.32	-2.03	0.050
Fracture load X3N	4112.75	883.31	5038.25	1188.45	0.88	0.34 to 1.43	-2.36	*0.026
Fracture load Y3N	3215.80	765.04	3540.28	727.05	0.44	-0.10 to 0.97	-1.12	0.274
Cortical density Z-score	-0.33	1.44	0.45	0.87	0.66	0.12 to 1.19	-1.79	0.084
Cortical area Z-score	-1.72	1.72	-0.25	1.11	1.02	0.46 to 1.57	-2.75	*0.011
SSI Z-score	-0.71	1.00	-0.52	0.95	0.20	-0.33 to 0.72	-0.50	0.619
Fitness parameters
1 RM leg press (kg)	59.33	20.17	96.00	32.86	1.35	0.77 to 1.93	-3.01	*0.008
Vertical jump (cm)	33.39	11.59	34.52	7.78	0.11	-0.41 to 0.64	-0.28	0.779
Standing broad jump (in)	41.71	15.50	47.00	15.13	0.35	-0.18 to 0.87	-0.89	0.381

^a=Mann-Whitney U test standardized test statistic,

^b=eta squared