BETTER4All Pilot Study to Test Personalized Weight Management Tools Using Smartwatches and Mobile Apps in Adults

What this Trial Is About

Researchers are evaluating the BETTER4U personalized intervention aimed at preventing obesity by improving weight management through tailored behavioral and biological strategies. This pilot study, part of a broader European Union-funded project, seeks to assess the usability, feasibility, and acceptability of the BETTER4U mobile application and intervention platform. The study involves adults aged 18 to 65 from seven countries, focusing on collecting data to refine AI models designed to support personalized weight management interventions. The study includes two main groups general population participants, called end-users, who will use a smartwatch and the BETTER4U mobile app for 21 days to monitor lifestyle behaviors such as eating, physical activity, sedentary time, and sleep, as well as environmental factors. Healthcare professionals, called implementers, will test the BETTER4U Intervention Platform and app for 7 days using synthetic data and their own wearable data to assess system usability and validate AI algorithms. Both groups receive training on their respective tools at the start of their participation periods. Participants will regularly use wearable devices and the mobile app to collect passive data and self-reports, complete online questionnaires, and provide feedback on usability and acceptability through validated surveys. Researchers will measure outcomes such as system usability, intervention acceptability, feasibility, and appropriateness scores at the end of each groups participation period. The collected data will help optimize AI models and intervention delivery methods before a larger randomized controlled trial. Total participation lasts 21 days for end-users and 7 days for implementers, with ongoing monitoring of app usage and engagement metrics.

Better4All Personalized Intervention Pilot Study