Table 4 Body composition as measured by a bone densitometer-DXA at baseline, after 4 months and 12 months of intervention in the total study population and by gender (mean ± SD)
Baseline (B) | 4 months (4 m) | 12 months (12 m) | p (B vs 4 m) | p (B vs 12 m) | ||
|---|---|---|---|---|---|---|
Fat mass (kg) | All | 18.5 ± 5.3 | 18.4 ± 5.3 | 19.2 ± 6.4 | 0.5 | 0.01 |
Boys | 18.6 ± 5.4 | 18.5 ± 5.6 | 19.0 ± 6.8 | 0.6 | 0.2 | |
Girls | 18.5 ± 5.2 | 18.4 ± 5.0 | 19.4 ± 6.0 | 0.6 | 0.01 | |
Lean mass (kg) | All | 27.0 ± 5.1 | 28.4 ± 5.5 | 30.8 ± 5.5 | < 0.001 | < 0.001 |
Boys | 28.1 ± 4.7 | 29.5 ± 4.9 | 31.7 ± 4.9 | < 0.001 | < 0.001 | |
Girls | 25.8 ± 5.2 | 27.3 ± 5.8 | 29.8 ± 5.9 | < 0.001 | < 0.001 | |
Total mass (kg) | All | 45.5 ± 9.8 | 46.8 ± 10.1 | 49.9 ± 11.1 | < 0.001 | < 0.001 |
Boys | 46.8 ± 9.7 | 48.0 ± 10.0 | 50.6 ± 10.8 | 0.004 | < 0.001 | |
Girls | 44.3 ± 9.8 | 46.6 ± 10.2 | 49.2 ± 11.4 | < 0.001 | < 0.001 | |
Total fat (%) | All | 40.3 ± 4.0 | 39.0 ± 4.4 | 37.8 ± 4.6 | < 0.001 | < 0.001 |
Boys | 39.3 ± 4.1 | 38.0 ± 4.7 | 36.8 ± 5.0 | 0.003 | < 0.001 | |
Girls | 41.4 ± 3.7 | 40.03 ± 3.9 | 38.9 ± 4.0 | < 0.001 | < 0.001 |