Project GAME ON! A Digital Comic Tool to Promote Healthy Behaviors

Registry record from ClinicalTrials.gov (NCT07820735). This is a study registration, not published results. Lead sponsor: Tufts University. Recruitment status: NOT_YET_RECRUITING. Phase: NA. Study type: INTERVENTIONAL. Enrollment: 180 participants (ESTIMATED). Conditions: Obesity & Overweight, Childhood, Diet Habits, Engagement, Physical Activity, Digital Health Intervention. Interventions: BEHAVIORAL: Web-based customizable comic and newsletters; BEHAVIORAL: Didactic health information and newsletters; BEHAVIORAL: Web-based comic and newsletters. Primary outcome measures: Child Engagement - Number of Weeks With at Least One Session , Tool usage will be tracked for the 6-week intervention period.; Child Engagement - Average Session Length , Tool usage will be tracked for the 6-week intervention period.; Child Engagement - Interactive Features , Tool usage will be tracked for the 6-week intervention period.; Parent Engagement - Number of Weeks With at Least One Session , Tool usage will be tracked for the 6-week intervention period.; Parent Engagement - Average Session Length , Tool usage will be tracked for the 6-week intervention period.; Parent Engagement -Interactive Features , Tool usage will be tracked for the 6-week intervention period.; Child Website Usability , T2 (intervention mid-point, 3-weeks post-baseline) and T3 (intervention endpoint, 6-weeks post-baseline); Child Website Acceptance and Satisfaction , T2 (intervention mid-point, 3-weeks post-baseline) and T3 (intervention endpoint, 6-weeks post-baseline); Parent Website Usability , T2 (intervention mid-point, 3-weeks post-baseline) and T3 (intervention endpoint, 6-weeks post-baseline); Parent Website Acceptance and Satisfaction , T2 (intervention mid-point, 3-weeks post-baseline) and T3 (intervention endpoint, 6-weeks post-baseline). Brief summary: This clinical trial aims to evaluate an interactive, culturally relevant digital health promotion comic designed to support healthy dietary and physical activity behaviors among Black/African American and Latino children ages 8 to 12 years. The comic allows children's choices to affect the storyline and health content, with the goal of increasing engagement, empowering children, and improving attitudes, beliefs, and self-efficacy related to healthy behaviors. Caregivers will also receive newsletters reinforcing healthy dietary and physical activity behaviors at home. The main questions it aims to answer are: 1. Does an interactive, customizable "choose-your-own-adventure" style comic lead to greater engagement and acceptability compared to standard digital comic formats? 2. Is greater engagement with the comic associated with improved self-efficacy related to dietary and physical activity behaviors? Researchers will compare three study groups to evaluate differences in engagement, acceptability, and self-efficacy outcomes related to dietary and physical activity behaviors. Participants will: * Use a 6-week digital comic and health promotion website remotely * Complete surveys about engagement, attitudes, beliefs, and self-efficacy related to healthy behaviors * Receive periodic reminders and support messages during the intervention period * For caregivers in the enhanced and non-enhanced comic groups: receive newsletters promoting healthy dietary and physical activity behaviors at home