Table 5.

Functional Measures: Muscle strength and Hop Testing

Parameter	n	Male	n	Female	p
Quad strength
6 months	27	88.7 (19.0)	37	98.0 (11.9)	0.004
12 months	27	95.6 (9.4)	35	97.0 (8.1)	0.66
24 months	27	98.2 (14.0)	32	101.8 (10.5)	0.27
Ham strength
6 months	27	86.0 (18.4)	37	98.3 (25.8)	0.03
12 months	27	98.8 (11.7)	35	94.5 (19.7)	0.45
24 months	27	101.1 (31.2)	32	94.6 (22.0)	0.27
Hip Abd Thigh
6 months	27	97.1 (14.6)	36	106.5 (15.7)	0.02
12 months	27	104.8 (18.0)	34	102.9 (15.1)	0.63
24 months	25	106.3 (17.8)	31	104.5 (13.2)	0.66
Hop test–single
6 months	22	78.1 (20.6)	30	91.3 (11.9)	0.001
12 months	23	87.0 (16.7)	29	96.9 (10.1)	0.01
24 months	18	93.0 (16.0)	24	95.0 (10.6)	0.48
Hop test–triple
6 months	19	87.9 (6.4)	28	92.4 (8.2)	0.10
12 months	23	88.9 (13.3)	29	95.1 (7.7)	0.02
24 months	18	92.6 (12.1)	23	95.9 (7.4)	0.27
Hop test–6M timed
6 months	20	114.3 (24.1)	30	103.6 (8.6)	0.01
12 months	23	109.2 (23.1)	29	102.1 (7.6)	0.09
24 months	18	104.6 (12.8)	22	104.4 (8.6)	0.97
Hop test–Xover
6 months	16	90.1 (7.0)	28	93.2 (8.1)	0.36
12 months	23	90.5 (16.0)	28	97.7 (10.9)	0.02
24 months	17	96.1 (8.0)	22	96.7 (11.2)	0.87