Table 2.
Demographics, exercise, motor performance, and physical fitness of children by grade (means ± standard deviation).
| 5th grade | 8th grade | Statistical analysis – p-value | |
|---|---|---|---|
| (n = 42) | (n = 27) | ||
| Age (years) | 10.3 ± 0.53 | 13.2 ± 0.24 | t(67) = -24.0, p < 0.001, d = 0.70 |
| Sex (boys/girls) | 29/13 | 16/11 | CHI2(1) = 0.69, p = 0.405 |
| BMI (kg/m2) | 16.4 ± 1.90 | 18.8 ± 1.34 | t(59) = -5.59, p < 0.001, d = 0.25 |
| Exercise (min/wk) | 177 ± 94.6 | 290 ± 165 | t(77) = -3.22, p = 0.003, d = 0.17 |
| MABC-2 checklist | |||
| A and B (0–90) | 4.95 ± 6.25 | 2.26 ± 3.21 | t(64) = 2.35, p = 0.022, d = 0.54 |
| C (0–13) | 2.17 ± 2.19 | 1.56 ± 2.21 | t(67) = 1.13, p = 0.263, d = 0.28 |
| PACER (laps) | 42.5 ± 14.4 | 63.1 ± 19.6 | t(67) = -5.02, p < 0.001, d = 1.20 |
| Vo2max | 49.2 ± 5.10 | 51.3 ± 4.00 | t(67) = -1.83, p = 0.071, d = 0.06 |
BMI, Body-Mass-Index; MABC-2 Movement Assessment Battery.