Physical parameters by age grade, mean (SD)
| Age (years) | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| Participants (n) | 54 | 66 | 63 | 65 | 55 | 62 | 17 |
| Height (cm) | 155 (7.6) | 163 (7.8) | 170 (7.5) | 175 (7.0) | 179 (7.5) | 180 (6.2) | 182 (8.1) |
| Weight (kg) | 48 (9.2) | 54 (10.8) | 61 (9.8) | 68 (11.4) | 72 (10.2) | 76 (12.8) | 84 (14.9) |
| Grip strength (kg) | 23 (3.9) | 27 (5.0) | 33 (8.1) | 38 (6.9) | 42 (8.1) | 43 (8.1) | 46 (6.9) |