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) |