Effectiveness and Theory-based Evaluation of a Personalised Digital Intervention (EviBody) for Healthy and Sustained Lifestyle Behaviours and Well-being Among Adults

What this Trial Is About

Researchers are evaluating the impact of a personalized digital intervention called EviBody on well-being, lifestyle behaviors, and mental health in adults. This quasi-experimental observational study compares users of the EviBody app with a control group from the general population. The study aims to answer questions about the effectiveness of the digital support for healthy habits over 6 months and 24 months, and how factors like engagement and sociodemographics influence outcomes. The study uses a four-armed design with three levels of the EviBody digital intervention—Basic, Standard, and Premium—and a control group without exposure. The app includes features for healthy eating, physical activity, and mental balance, such as tracking, goal setting, feedback, AI chat, recipe and exercise databases, and webinars. Higher membership levels offer social support and individual coaching via private online health consultations. Participants choose their membership level when enrolling. Participants will complete seven questionnaires over two years and allow researchers to collect app usage data. The research will measure well-being at 6 and 24 months as primary outcomes, with secondary measures including stress, burnout, and sleep. The study will track how participants maintain healthy habits and mental health, and analyze patterns of user engagement, motivation, and perceived barriers during the 24-month period.

Evaluation of a Personalised Digital Intervention (EviBody) for Healthy and Sustained Lifestyle Behaviors and Well-being Among Adults: a Real-world Quasi-experimental Study