Table 5.

Age group comparison of hip range of motion (ROM) (in degrees)

Variable	Young, Age ≤12 y (n = 93)	Adolescent, Age 13-17 y (n = 103)	Adult, Age ≥18 y (n = 40)	P
Hip internal rotation, mean (SD) [range]
Dominant	41.7 (11.7) [12-66]a	40.0(12.4) [10-70] a,b	32.6(10.0) [12-50]b	0.0005*
Nondominant	42.2 (11.5) [4-68]a	38.3 (10.8) [10-62]b	34.1 (7.5) [20-50]b	0.0002*
Hip external rotation, mean (SD) [range]
Dominant	45.6 (10.5) [13-62]a	42.0 (9.4) [18-63]b	35.6 (9.7) [7-54]c	<0.0001*
Nondominant	42.9 (10.8) [15-65]a	40.4 (8.5) [17-64]a	32.6 (9.7) [12-60]b	<0.0001*
Hip total rotation, mean (SD) [range]
Dominant	87.3 (16.8) [30-123]a	81.0 (12.8) [35-115]b	68.9 (11.9) [44-89]c	<0.0001*
Nondominant	85.1 (16.8) [25-122]a	78.7 (13.2) [35-116]b	67.6(11.5) [38-89]c	<0.0001*

^a,bComparisons with the same letter are not statistically different.

^*Statistically significant (P < 0.05).