Using Technologies to Promote HEalthy Lifestyles in Adolescents With Intellectual Disabilities

"The intervention was carried out over a period of 8 consecutive weeks and was delivered through a mobile application specifically developed for this project, called IDHEApp, which incorporated gamification elements to enhance user engagement and motivation. Participants in the experimental group received a structured mHealth-based program aimed at promoting healthier behaviors in three primary domains: physical activity, sedentary behavior reduction, and dietary improvement. Objective data on physical activity and sedentary behavior were collected using a smartwatch device (Fitbit Versa 3), which was worn by all participants in both the experimental and control groups throughout the study. However, only participants in the experimental group received a daily personalized behavioral challenge targeting one of the following domains:~1. Increasing physical activity (e.g., Walk an additional 1,000 steps today);~2. Reducing sedentary behavior (e.g., Stand up and move for at least 5 minut"