Table 2.
Changes from baseline to 10-week follow-up (N=160).
| Variables | Within-group differences from baseline to 10-week follow-up | Between-group differences from baseline to 10-week follow-up | ||||||
|
|
Email group (n=106) |
Control group (n=54) |
Email vs Control | P value | ||||
|
|
Mean | 95% CI | Mean | 95% CI | Mean | 95% CI |
|
|
| Cardiovascular |
|
|
|
|
|
|
|
|
|
|
Aerobic fitness (mL/min/kg) | 2.32 | 1.84, 2.79 | 0.86 | 0.20, 1.52 | 1.45 | 0.64, 2.27 | <.001 |
|
|
Systolic blood pressure (mmHg) | –2.62 | –4.32, –0.93 | –1.04 | –3.36, 1.28 | –1.58 | –4.45, 1.28 | .28 |
|
|
Diastolic blood pressure (mmHg) | –2.85 | –3.90, –1.81 | –2.17 | –3.61, –0.74 | –0.68 | –2.45, 1.10 | .45 |
| Leisure time physical activity (hours/week) |
|
|
|
|
|
|||
|
|
Low intensity | –0.15 | –0.48, 0.18 | –0.15 | –0.61, 0.31 | 0.01 | –0.57, 0.56 | .98 |
|
|
Moderate intensity | 0.00 | –0.30, 0.30 | 0.03 | –0.38, 0.45 | –0.04 | –0.55, 0.47 | .89 |
|
|
Vigorous intensity | 0.10 | –0.05, 0.25 | –0.04 | –0.25, 0.17 | 0.13 | –0.12, 0.39 | .31 |
| Other |
|
|
|
|
|
|
|
|
|
|
Weight (kg) | –0.24 | –0.60, 0.13 | –0.12 | –0.62, 0.38 | –0.11 | –0.73, 0.50 | .72 |
|
|
Body fat percentage (%) | –0.44 | –0.71, –0.17 | –0.47 | –0.85, –0.10 | 0.03 | –0.43, 0.49 | .89 |