Table 1. Demographic Characteristics and Preintervention Demographic, Anthropometric, and Biomechanical Measures of Athletes by LPA Risk Profilea.
| Profile 1 (Low; n = 62) | Profile 2 (Moderate; n = 337) | Profile 3 (High; n = 68) | |
|---|---|---|---|
| Age,b,c,d y | 12.6 ± 0.2 | 14.1 ± 0.1 | 14.9 ± 0.2 |
| Pubertal stage, n (%) | |||
| Prepubertal | 12 (19) | 14 (4) | 0 (0) |
| Pubertal | 40 (65) | 175 (52) | 21 (32) |
| Postpubertal | 10 (16) | 148 (44) | 45 (68) |
| Weight,b,c,d kg | 41.2 ± 1.2 | 54.5 ± 0.5 | 70.1 ± 1.1 |
| Height, cm | 151.2 ± 0.9 | 161.1 ± 0.4 | 166.7 ± 0.8 |
| BMI, kg/m2 | 17.9 ± 0.4 | 20.9 ± 0.2 | 25.2 ± 0.4 |
| KAM (DVJ), Nm | |||
| Unadjustedb,c | −15.3 ± 1.5 | −23.2 ± 0.6 | −25.6 ± 1.4 |
| Adjusted for age and pubertal stageb,c | −15.6 ± 1.6 | −22.4 ± 1.0 | −24.8 ± 1.7 |
| KAM (SCD), Nm | |||
| Unadjustedb,c,d | −8.1 ± 1.6 | −12.4 ± 0.7 | −16.1 ± 1.6 |
| Adjusted for age and pubertal stageb,c,d | −4.6 ± 1.8 | −11.3 ± 1.0 | −15.9 ± 1.8 |
a
Data are reported as least squares mean ± standard error unless otherwise indicated. BMI, body mass index; DVJ, drop vertical jump; KAM, knee abduction moment; LPA, latent profile analysis; SCD, crossover single-leg drop.
b
Statistically significant difference between profiles 1 and 2 (P < .05).
c
Statistically significant difference between profiles 1 and 3 (P .05).
d
Statistically significant difference between profiles 2 and 3 (P < .05).