Empowering Healthy Lifestyle Behavior Through Personalized Intervention Portfolios Using a Healthy Lifestyle Recommender System to Prevent and Control Obesity in Young Adults: Pilot Study Protocol from the HealthyW8 Project

  • Silvia Garcia
  • , Marina Ródenas-Munar
  • , Torsten Bohn
  • , A. Kemperman
  • , Daniela Rodrigues
  • , Suzan Evers
  • , Elsa Lamy
  • , Maria Pérez-Jiménez
  • , Sarah Forberger
  • , M. Onorati
  • , A. Devecchi
  • , Titziana De Magistris
  • , Jihan Halimi
  • , Yoanna Ivanova
  • , B. Doychinov
  • , Cristina Bouzas
  • , Josep Tur

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Background: Rising obesity rates among young adults increase long-term health risks, especially cardiometabolic conditions such as type 2 diabetes mellitus. Digital interventions can offer scalable solutions to promote and support healthy behaviors by integrating personalized diet, physical activity promotion, and behavioral support. Objective: To assess the feasibility, user friendliness, adherence, and satisfaction of the Healthy Lifestyle Recommender System (HLRS). Secondary outcomes will include measures of metabolic health and obesity. Methods: A 3-month, single-arm pilot study conducted across European countries, including Bulgaria, Germany, Italy, Netherlands, Portugal, and Spain, enrolling 351 young adults (18-25 years old, BMI 18.5-29.9 kg/m 2). The intervention includes a mobile app for meal planning (Nutrida v.1), gamified physical activity encouragement (GameBus), and real-time monitoring via a wearable smartwatch device. Primary outcomes are adherence and engagement, measured through app usage and participant feedback; secondary outcomes include anthropometry, physical activity, dietary patterns, psychological well-being, and selected biomarkers of metabolic health. Expected Outcomes: Improved engagement is expected to enhance lifestyle behaviors, supporting weight management and overall well-being. Findings will guide future large-scale interventions. Conclusions: This study will contribute to minimizing the impact of obesity in Europe.

Original languageEnglish
Article number625
JournalJournal of Personalized Medicine
Volume15
Issue number12
DOIs
Publication statusPublished - 13 Dec 2025

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