Table 3.
Physical activity, weight, body composition, and fitness by 18 month weight change classification (mean ± standard deviation)
| *18 Month Weight Change Classification | Baseline | 6 Months | 12 Months | 18 Months | Time | Group | Group X Time | |
|---|---|---|---|---|---|---|---|---|
|
| ||||||||
| Physical Activity (min/wk) | WT-GAIN (N=48) | 149.8±196.9 | 295.5±249.3 | 212.4±198.6 | 224.5±196.0 | <0.0001+ | 0.1588+ | 0.0296+ |
| WT-STABLE (N=132) | 107.5±151.7 | 236.5±181.7 | 213.9±184.6 | 185.7±178.6 | ||||
| WT-LOSS (N=68) | 97.9±125.4 | 326.1±196.1 | 289.1±198.1 | 259.9±218.3 | ||||
| Total (N=248) | 113.1±155.5 | 272.5±203.4 | 234.3±193.3 | 213.5±195.4 | ||||
| Physical Activity (kcal/wk) | WT-GAIN (N=48) | 1011.2±1038.9 | 1784.0±1238.7 | 1333.9±1018.4 | 1404.5±1069.8 | <0.0001+ | 0.0229+ | 0.0354+ |
| WT-STABLE (N=132) | 816.2±850.2 | 1491.4±1025.8 | 1382.4±1018.8 | 1233.1±965.2 | ||||
| WT-LOSS (N=68) | 752.0±638.9 | 2014.9±1110.7 | 1813.1±1077.7 | 1677.3±1196.7 | ||||
| Total (N=248) | 836.4±841.2 | 1691.6±1112.0 | 1491.1±1050.0 | 1388.0±1066.0 | ||||
| Weight (kg) | WT-GAIN (N=48) | 73.7±7.9 | 74.6±7.9 | 76.4±8.7 | 77.8±8.2 | <0.0001 | 0.005 | <0.0001 |
| WT-STABLE (N=132) | 74.2±8.2 | 73.3±8.3 | 73.6±8.0 | 74.2±8.1 | ||||
| WT-LOSS (N=68) | 74.1±8.5 | 70.7±8.6 | 69.7±8.6 | 68.7±8.6 | ||||
| Total (N=248) | 74.1±8.2 | 72.9±8.4 | 73.1±8.6 | 73.4±8.8 | ||||
| Body Mass Index (kg/m2) | WT-GAIN (N=48) | 27.1±1.7 | 27.4±1.9 | 28.1±2.0 | 28.6±1.8 | <0.0001 | <0.0001 | <0.0001 |
| WT-STABLE (N=132) | 27.1±1.6 | 26.8±1.7 | 26.9±1.7 | 27.1±1.6 | ||||
| WT-LOSS (N=68) | 26.9±1.8 | 25.7±2.1 | 25.3±2.1 | 25.0±2.1 | ||||
| Total (N=248) | 27.1±1.7 | 26.6±1.9 | 26.7±2.1 | 26.8±2.2 | ||||
| Waist (cm) | WT-GAIN (N=48) | 89.5±8.9 | 89.4±7.7 | 89.7±8.5 | 91.3±9.0 | <0.0001 | 0.006 | <0.0001 |
| WT-STABLE (N=132) | 90.9±8.4 | 89.5±8.9 | 90.0±8.7 | 91.1±8.6 | ||||
| WT-LOSS (N=68) | 90.1±8.2 | 86.3±9.0 | 85.3±10.3 | 84.9±9.9 | ||||
| Total (N=248) | 90.4±8.4 | 88.6±8.8 | 88.7±9.3 | 89.4±9.4 | ||||
| Percent Body Fat | WT-GAIN (N=48) | 33.6±4.7 | 34.2±4.6 | 35.4±4.5 | 36.1±4.2 | <0.0001 | <0.0001 | <0.0001 |
| WT-STABLE (N=132) | 33.9±3.7 | 33.4±4.0 | 33.9±4.0 | 33.9±4.0 | ||||
| WT-LOSS (N=68) | 32.0±4.5 | 29.7±5.5 | 29.2±5.7 | 28.7±5.4 | ||||
| Total (N=248) | 33.4±4.2 | 32.5±4.9 | 32.9±5.2 | 32.9±5.2 | ||||
| Fitness (minutes) | WT-GAIN (N=48) | 10.3±3.6 | 11.9±3.2 | 11.2±3.5 | 11.7±3.5 | <0.0001 | 0.001 | <0.0001 |
| WT-STABLE (N=132) | 10.3±3.4 | 12.5±4.2 | 11.7±3.9 | 11.5±3.9 | ||||
| WT-LOSS (N=68) | 9.7±3.8 | 14.3±5.1 | 14.7±4.2 | 14.4±4.6 | ||||
| Total (N=248) | 10.1±3.6 | 13.0±4.4 | 12.4±4.2 | 12.3±4.2 | ||||
*
WT-GAIN = >3% gain in weight from baseline to 18 months; WT-STABLE: ±3% change in weight from baseline to 18 months; WT-LOSS: >3% weight loss from baseline to 18 months.
+
indicates p-values were obtained from the mixed effects models with log-transformed data.