Table 1. Demographic variables of the players of a soccer club (mean ± standard deviation).
| U10 (n = 16) | U12 (n = 15) | U14 (n = 13) | U16 (n = 15) | U19 (n = 13) | Total (n = 72) | |
|---|---|---|---|---|---|---|
| Age (years) | 8.9 ± 0.9 | 11.6 ± 0.5 | 12.7 ± .7 | 14.9 ± 0.7 | 17.7 ± .8 | 13.0 ± 3.1 |
| Body mass (kg) | 33.5 ± 6.3 | 39.7 ± 6.4 | 52.1 ± 8.8 | 62.0 ± 9.1 | 70.2 ± 5.2 | 50.5 ± 15.3 |
| Height (cm) | 136.4 ± 6.7 | 149.3 ± 8.3 | 161.0 ± 8.7 | 172.2 ± 7.7 | 176.9 ± 5.5 | 158.2 ± 16.8 |
| BMI (kg/m2) | 17.9 ± 2.21 | 17.6 ± 1.1 | 19.7 ± 2.3 | 20.5 ± 1.8 | 22.6 ± 1.8 | 19.6 ± 2.6 |
Notes.
- BMI
- body mass index