Table 1 Overview of intervention elements and recommended use.
Intervention element | Description | Recommended use and examples |
|---|---|---|
Self-monitoring | Monitoring via logging of meals, weight, activity, symptoms, mood, fluid intake and other parameters. Aggregated logs are presented back as graphical progress reports. | Specific to the type of log: • Daily: photo-logs of food. • Weekly: weight. |
Self-management | Short-term health-related tasks and goals are personalized and nudged via app alerts, push notifications and emails. | Specific to the type of task or goal: • Daily: drink 2 liters of water per day. • Weekly: conduct light exercise three times a week. • Longer-term: personal weight loss goal at 3 months. |
Education | Multimedia learning content (text, videos, podcasts) on diet, physical activity, and health-related behaviors is provided and unlocked upon completion of previous content (including a quiz). | Completion of the theme-based, weekly-provided content in any given week: • Diet: personalized meal plans and recipes, meal frequency. • Physical activity: movement instructions, value for well-being and health. • Health-related behaviors: stress management, emotional eating, sleep. |
Feedback | Based on self-monitoring data (see above), personalized feedback is provided on nutritional intake, weight, completed self-management tasks and goals. Achievements are celebrated via gamification. | Specific to type of feedback: • In-the-moment: recommendation for healthier food choices upon photo-logging a meal, achieved completion of the daily step goal is celebrated via animated confetti. • Longer-term: weight change trajectory in relation to personal weight loss goal. |
