Table 2.
Physical activity, weight, body composition, and fitness by randomized group assignment (mean ± standard deviation)
| Group | Baseline | 6 Months | 12 Months | 18 Months | Time | Group | Group X Time | |
|---|---|---|---|---|---|---|---|---|
|
| ||||||||
| Physical Activity (min/wk) | Self-Help (N=84) | 146.5±201.0 | 242.0±210.9 | 217.5±222.0 | 221.1±204.5 | <0.0001* | 0.1278* | 0.0421* |
| MOD-PA (N=76) | 110.8±123.8 | 242.3±157.5 | 209.2±140.7 | 176.9±151.3 | ||||
| HIGH-PA (N=88) | 83.1±122.2 | 327.7±220.9 | 271.8±199.4 | 237.9±216.7 | ||||
| Total (N=248) | 113.1±155.5 | 272.5±203.4 | 234.3±193.3 | 213.5±195.4 | ||||
| Physical Activity (kcal/wk) | Self-Help (N=84) | 1018.4±1070.2 | 1529.4±1101.1 | 1438.7±1200.9 | 1460.4±1126.3 | <0.0001* | 0.3096* | 0.0015* |
| MOD-PA (N=76) | 799.1±693.4 | 1504.4±856.5 | 1324.1±819.7 | 1147.4±814.0 | ||||
| HIGH-PA (N=88) | 694.8±669.6 | 2008.1±1250.6 | 1685.4±1053.6 | 1526.8±1170.2 | ||||
| Total (N=248) | 836.4±841.2 | 1691.6±1112.0 | 1491.1±1050.0 | 1388.0±1066.0 | ||||
| Weight (kg) | Self-Help (N=84) | 73.7±8.0 | 72.8±8.4 | 72.8±8.6 | 73.2±8.5 | <0.0001 | 0.960 | 0.539 |
| MOD-PA (N=76) | 74.2±8.4 | 72.9±8.4 | 73.5±8.5 | 73.5±8.7 | ||||
| HIGH-PA (N=88) | 74.3±8.2 | 72.9±8.5 | 73.0±8.7 | 73.5±9.2 | ||||
| Total (N=248) | 74.1±8.2 | 72.9±8.4 | 73.1±8.6 | 73.4±8.8 | ||||
| Body Mass Index (kg/m2) | Self-Help (N=84) | 27.1±1.7 | 26.7±2.0 | 26.7±2.2 | 26.9±2.1 | <0.0001 | 0.601 | 0.527 |
| MOD-PA (N=76) | 27.2±1.8 | 26.7±1.9 | 26.9±2.0 | 26.9±2.0 | ||||
| HIGH-PA (N=88) | 27.0±1.6 | 26.4±1.9 | 26.5±2.1 | 26.7±2.4 | ||||
| Total (N=248) | 27.1±1.7 | 26.6±1.9 | 26.7±2.1 | 26.8±2.2 | ||||
| Waist (cm) | Self-Help (N=84) | 89.3±8.8 | 88.0±8.5 | 88.1±8.6 | 88.4±8.8 | <0.0001 | 0.286 | 0.699 |
| MOD-PA (N=76) | 91.4±7.9 | 89.5±8.7 | 90.2±8.9 | 90.6±9.4 | ||||
| HIGH-PA (N=88) | 90.5±8.4 | 88.5±9.2 | 87.8±10.1 | 89.4±10.0 | ||||
| Total (N=248) | 90.4±8.4 | 88.6±8.8 | 88.7±9.3 | 89.4±9.4 | ||||
| Percent Body Fat | Self-Help (N=84) | 33.7±4.4 | 33.2±5.2 | 33.2±5.6 | 33.2±5.4 | <0.0001 | 0.328 | 0.313 |
| MOD-PA (N=76) | 33.5±4.1 | 32.7±4.8 | 33.3±4.9 | 33.3±4.8 | ||||
| HIGH-PA (N=88) | 33.0±4.1 | 31.8±4.7 | 32.3±4.9 | 32.3±5.3 | ||||
| Total (N=248) | 33.4±4.2 | 32.5±4.9 | 32.9±5.2 | 32.9±5.2 | ||||
| Fitness (minutes) | Self-Help (N=84) | 10.2±3.3 | 11.9±3.8 | 11.9±4.0 | 11.9±4.1 | <0.0001 | 0.1215 | 0.008 |
| MOD-PA (N=76) | 9.8±3.6 | 13.1±5.2 | 12.1±4.6 | 11.8±4.4 | ||||
| HIGH-PA (N=88) | 10.3±3.8 | 13.7±3.9 | 13.0±3.8 | 13.1±4.0 | ||||
| Total (N=248) | 10.1±3.6 | 12.9±4.4 | 12.4±4.1 | 12.3±4.2 | ||||
*
indicates p-values were obtained from the mixed effects models with log-transformed data.