Table 1.
Characteristics of participating children at 4 and at 9 years of age
| 4 years old | 9 years old | |||
|---|---|---|---|---|
| n | Value | n | Value | |
| Age (yrs) | 315 | 4.5 (0.1) | 231 | 9.6 (0.1) |
| Height (cm) | 315 | 107.6 (4.2) | 231 | 139.7 (6.3) |
| Weight (kg) | 315 | 18.3 (2.5) | 231 | 33.5 (7.1) |
| Weight status n (%) | 315 | 231 | ||
| Underweight | 27 (8.6) | 22 (9.5) | ||
| Normal weight | 260 (82.5) | 176 (76.6) | ||
| Overweight | 24 (7.6) | 29 (12.6) | ||
| Obesity | 4 (1.3) | 4 (1.7) | ||
| Mother education level n (%) | 315 | |||
| University or higher | 223 (70.8) | |||
| Below university | 92 (29.2) | |||
| Body composition | ||||
| FFMI (kg/m2) | 303 | 11.6 (1.0) | 230 | 13.5 (1.1) |
| FMI (kg/m2) | 303 | 4.1 (0.9) | 230 | 3.6 (1.9) |
| Physical fitness | ||||
| Aerobic (laps) | 315 | 15.8 (1.4) | 231 | 17.1 (2.5) |
| Speed-Agility (s) | 303 | 11.6 (1.0) | 230 | 13.5 (1.1) |
| Upper-body strength (kg) | 303 | 26.0 (4.4) | 230 | 20.0 (7.4) |
| Lower-body strength (cm) | 303 | 4.1 (0.9) | 230 | 3.6 (1.9) |
Data presented as mean (SD) unless otherwise stated