| n a | Intervention group | Control group |
---|---|---|---|
 |  | Mean (SD b) | Mean (SD b) |
Age | 1378 | 12.9 (0.8) | 12.9 (0.8) |
Female (%) | 1440 | 66.4 | 59.3 |
Fitness | Â | Â | Â |
Cardiopulmonary fitness | Â | Â | Â |
20Â m shuttle run (stage) | 1363 | 2.5 (0.7) | 2.7 (0.9) |
20Â m shuttle run (min) | 1362 | 1.7 (0.7) | 1.9 (0.9) |
Speed-agility | Â | Â | Â |
Speed shuttle run (s) | 1389 | 24.6 (2.4) | 24.5 (2.2) |
Plate tapping (s) | 1394 | 14.6 (1.9) | 14.2 (2.0) |
Flexibility | Â | Â | Â |
Sit and reach (cm) | 1391 | 20.1 (6.6) | 20.5 (6.3) |
Muscle strength and endurance | Â | Â | Â |
Sit-up (number/30Â s) | 1389 | 12.0 (3.9) | 12.6 (3.4) |
Vertical jump (cm) | 1391 | 25.4 (5.6) | 26.0 (5.3) |
Bent arm hang (s) | 1390 | 6.0 (7.0) | 6.0 (6.6) |
Handgrip (kgf) | 1393 | 18.4 (4.9) | 19.2 (5.0) |
Balance | Â | Â | Â |
Flamingo (trying/min) | 1389 | 17.8 (5.8) | 18.5 (6.0) |
Screen time | Â | Median (IQR) | Median (IQR) |
TV in the week (h/day) | 1370 | 1.0 (0.5 – 2.0) | 1.0 (0.5 – 2.0) |
TV in the weekend (h/day) | 1370 | 2.0 (1.0 – 4.0) | 2.0 (1.0 – 4.0) |
Internet in the week (h/day) | 1370 | 0.5 (0.0 – 1.0) | 0.5 (0.0 – 1.0) |
Internet in the weekend (h/day) | 1370 | 0.5 (0.0 - 1.0) | 0.5 (0.0 – 1.0) |
Video games in the week (h/day) | 1370 | 0.0 (0.0 – 0.0) | 0.0 (0.0 – 0.0) |
Video games in the weekend (h/day) | 1370 | 0.0 (0.0 – 1.0) | 0.0 (0.0 – 1.0) |
Total screen time in the week (h/day) | 1370 | 2.5 (1.5 – 3.5) | 2.0 (1.5 – 3.5) |
Total screen time in the weekend (h/day) | 1370 | 4.0 (2.0 – 5.5) | 4.0 (2.0 – 6.0) |
%Sedentary week (% screen time >3Â h/day)d | 1370 | 31.2 (46.4) | 28.9 (45.4) |
%Sedentary weekend (% screen time >3Â h/day)d | 1370 | 50.9 (50.0) | 50.2 (50.0) |
Accelerometer data | Â | Mean (SD) | Mean (SD) |
Total PA (counts/day) | 226 | 305226 (109950) | 280819 (116144) |
Total PA (CPM/day) | 226 | 375.5 (138.0) | 357.8 (141.8) |
Sedentary time (min/day) | 226 | 487.6 (126.9) | 484.9 (108.3) |
Light PA (min/day) | 226 | 217.6 (58.1) | 192.7 (66.7) |
Moderate-Vigorous PA (min/day) | 226 | 119.3 (42.4) | 109.4 (45.0) |
% who meet the PA recommendation (60Â min MVPA/day) | 226 | 95.0 (21.9) | 91.5 (28.0) |
Anthropometry | Â | Â | Â |
Body mass index (kg/m^2) | 1382 | 19.8 (3.4) | 19.7 (2.9) |
Body mass index z-score | 1371 | 0.3 (1.1) | 0.3 (1.0) |
Overweight prevalence (%)c | 1371 | 20.1 (40.7) | 19.7 (39.8) |