Table 1 Characteristics of the participants at baseline in this study
Total (n = 1222) | Knee pain (−) (n = 1133) | Knee pain (+) (n = 89) | |
|---|---|---|---|
Age (y) | |||
8 | 305 (25.0) | 292 (25.8) | 13 (14.6) |
9 | 110 (9.0) | 106 (9.4) | 4 (4.5) |
10 | 122 (9.9) | 109 (9.5) | 13 (14.6) |
11 | 110 (9.0) | 102 (9.0) | 8 (9.0) |
12 | 282 (23.1) | 262 (23.1) | 20 (22.5) |
13 | 150 (12.3) | 134 (11.8) | 16 (18.0) |
14 | 143 (11.7) | 128 (11.3) | 15 (16.9) |
Sex | |||
Girls | 613 (50.2) | 582 (51.4) | 31 (34.8) |
Boys | 609 (49.8) | 551 (48.6) | 58 (65.2) |
BMI (kg/m2) | 17.4 ± 2.5 | 17.4 ± 2.6 | 17.4 ± 2.5 |
Lower limb tightness | |||
Rt HBD (cm) | 1.3 ± 2.8 | 1.3 ± 2.8 | 1.5 ± 3.2 |
Lt HBD (cm) | 1.3 ± 2.8 | 1.3 ± 2.7 | 1.7 ± 3.7 |
Rt SLRA (deg) | 76.6 ± 13.3 | 76.8 ± 13.1 | 74.0 ± 14.7 |
Lt SLRA (deg) | 76.6 ± 13.5 | 76.9 ± 13.3 | 73.5 ± 15.3 |
Rt DFA (deg) | 15.6 ± 6.9 | 15.7 ± 6.9 | 14.0 ± 7.0 |
Lt DFA (deg) | 15.3 ± 6.8 | 15.3 ± 6.8 | 14.1 ± 7.1 |
HSS Pedi-FABS | 15.5 ± 8.1 | 15.5 ± 8.1 | 15.2 ± 8.7 |