Table 3.
Changes in Body Composition and Activity
| Gaming group | Comparison group | ||||
|---|---|---|---|---|---|
| Outcome variable | Pre | Post | Pre | Post | p value |
| Weight (kg; mean ± SD) | 66.3 ± 11.0 | 68.2 ± 11.6 | 68.3 ± 10.9 | 69.9 ± 11.1 | 0.305a 0.001b,c |
| BMI (mean ± SD) | 22.69 ± 3.24 | 23.37 ± 3.36 | 23.55 ± 3.28 | 24.02 ± 3.12 | 0.332 0.001c |
| PBF (%; mean ± SD) | 20.6 ± 9.1 | 22.4 ± 8.8 | 21.0 ± 8.7 | 21.9 ± 8.6 | 0.208 0.001c |
| Waist circumference (cm; mean ± SD) | 75.1 ± 9.4 | 76.5 ± 9.1 | 77.8 ± 8.2 | 77.8 ± 7.6 | 0.102 0.119 |
| Activity (steps/week; mean ± SD) | 34,235 ± 16,791 | 47,901 ± 20,224 | 46,177 ± 22,182 | 35,912 ± 17,865 | 0.001c 0.008c |
| MPA (days/week) | 4.9 ± 1.6 | 4.1 ± 1.9 | 4.3 ± 2.0 | 4.1 ± 1.8 | 0.410 0.091 |
| VPA (days/week) | 4.1 ± 1.6 | 3.7 ± 2.0 | 3.9 ± 2.0 | 3.1 ± 1.8 | 0.001d 0.04c |
SD, standard deviation.
a
Group x time interaction.
b
Time main effect.
b
Significant at p < .05.
b
Significant at p < .01.