Table 3.
Distance and Calories
| Time point | Distance |
Calories burned, mean ± SD |
||||
|---|---|---|---|---|---|---|
| Control |
Intervention |
Control | Intervention | |||
| No. | Miles, mean ± SD | No. | Miles, mean ± SD | |||
| Baseline | 44 | 3.48±1.35 | 46 | 3.59±1.11 | 1903.5±1058.8 | 1842.7±364.7 |
| Δ at week 1 | 43 | –0.09±0.74 | 46 | 0.15±0.71 | –67.4±457.3 | 43.2±91.8 |
| Δ at week 2 | 44 | –0.23±1.08 | 45 | 0.38±1.02 | –59.6±261.3 | 66.4±121.0 |
| Δ at week 3 | 43 | –0.25±0.80 | 46 | 0.40±0.88 | –30.3±101.1 | 56.6±131.0 |
| Δ at week 4 | 42 | –0.17±1.00 | 45 | 0.21±0.91 | –66.4±282.5 | 41.2±122.0 |
| Δ at week 5 | 44 | –0.20±1.15 | 46 | 0.31±0.88 | –8.5±161.0 | 42.3±104.8 |
| Δ at week 6 | 42 | –0.07±0.85 | 45 | 0.35±1.04 | –4.5±111.8 | 10.7±152.3 |
| Δ at week 7 | 43 | –0.20±1.02 | 46 | 0.41±0.83 | –21.3±127.1 | 45.7±120.0 |
| Δ at week 8 | 43 | –0.09±1.10 | 44 | 0.12±1.09 | –21.3±121.1 | 25.1±116.9 |
| Δ at week 9 | 42 | –0.26±1.19 | 44 | 0.16±1.17 | –126.9±650.5 | 25.2±135.4 |
| Δ at week 10 | 43 | –0.25±1.26 | 44 | 0.44±1.03 | –111.0±497.7 | 74.3±125.8 |
| Δ at week 11 | 44 | –0.30±1.03 | 46 | 0.33±1.00 | –174.6±1046.8 | 46.1±150.5 |
| Δ at week 12 | 43 | –0.54±1.09 | 44 | –0.39±1.20 | –125.6±170.7 | –108.1±219.8 |
| Effect estimate (95% CI) [P value] | 0.46a (0.29-0.63) [<.001] | 90.64a (32.33-148.95) [.003] | ||||
a
Data were analyzed using a linear mixed model with an autoregressive covariance structure used to account for the repeated measures study design. In all cases, the independent variable was study group (intervention vs control), and the baseline value of the given outcome variable was included as a covariate. The effect estimate corresponds to the estimated difference between study groups (intervention – control).