Baseline characteristics
| Baseline characteristic | Training group (n=380) | Control group (n=364) |
|---|---|---|
| Age group | U13–15=46.6% (95% CI 41.5 to 51.7) | U13–15=48.9% (95% CI 43.7 to 54.2) |
| U16–18=53.4% (95% CI 48.3 to 58.5) | U16–18=51.1% (95% CI 45.8 to 56.3 | |
| Gender | Female=42.4% (95% CI 37.3 to 47.5) | Female=69% (95% CI 63.9 to 73.7) |
| Male=57.6% (95% CI 52.5 to 62.7) | Male=31% (95% CI 26.3 to 36.1) | |
| Previous injury 1 year | 40.5% (95% CI 35.6 to 45.7) | 41.8% (95% CI 36.6 to 47) |
| Height (m) | 1.66 (95% CI 1.64 to 1.67) | 1.63 (95% CI 1.61 to 1.64) |
| Weight (kg) | 55.2 (95% CI 54.2 to 56.3) | 53.8 (95% CI 52.6 to 55.0) |
| Body mass index (kg/m2) | 19.9 (95% CI 19.6 to 20.2) | 20.4 (95% CI 19.8 to 20.9) |
| Left foot dominant | 7.1% (95% CI 4.7 to 10.2) | 6% (95% CI 3.8 to 9.0) |
| Dynamic balance max Left (s) | 6.08 (95% CI 5.64 to 6.51) | 6.51 (95% CI 5.91 to 7.11) |
| Dynamic balance max Right (s) | 6.51 (95% CI 6.09 to 6.94) | 6.44 (95% CI 5.87 to 7.02) |