Statistical methods
| Outcome | Hypothesis | Statistical analysis |
| Primary outcome | ||
| Average number of steps/activity-minutes per day | Increase within first 4 weeks and until programme completion compared with baseline | t-test for combined samples (or Wilcoxon test) |
| Secondary outcomes | ||
| Average MET-minutes per week | Increase within first 4 weeks and until programme completion compared with baseline, maintained over 2/4/6/12 months | t-test (or Wilcoxon-test) |
| Self-efficacy (motivational, maintaining, restoring self-efficacy) | Increase within first 4 weeks and until programme completion compared with baseline, maintained over 2/4/6/12 months | t-test (or Wilcoxon-test) |
| Self-assessment endurance, muscle strength | Increase within first 4 weeks and until programme completion compared with baseline, maintained over 2/4/6/12 months | t-test (or Wilcoxon-test) |
| Health-related quality of life (SF-8) | Increase within first 4 weeks and until programme completion compared with baseline, maintained over 2/4/6/12 months | t-test (or Wilcoxon-test) |
| User behaviour (Peva-FB after completion of the programme, or in case of dropout, additional continuously recorded internal system data (see table 1)) | Descriptive analysis with frequencies, mean values, SD | |
| Subgroup analysis (eg, age, gender, BMI, baseline activity, participation in additional lifestyle interventions) | Multiple linear regression (multilevel model, if applicable) | |
BMI, body mass index; MET, metabolic equivalent; Peva, process evaluation; SF-8, Short Form Health Survey 8.