Usability Testing an mHealth Program with Tailored Motivational Messages for Early Adolescents

Area of Science:

• Pediatric Health
• Behavioral Science
• Digital Health Interventions

Background:

• Childhood obesity is a global health crisis, particularly affecting diverse and low-income U.S. populations.
• Adolescent obesity correlates with significant physical and psychological health risks.
• Mobile health interventions show promise for promoting healthier lifestyles in children.

Purpose of the Study:

• To develop and evaluate a novel mobile application prototype for early adolescents.
• To engage youth interactively in healthy eating and active living behaviors.
• To assess the app's usability and reception among a diverse middle school population.

Main Methods:

• A mobile app prototype was designed based on self-determination, social cognitive, and priming theories.
• Usability testing was conducted with middle school students from predominantly low-income families.
• Participants provided feedback on the app's engagement and motivational features.

Main Results:

• The app prototype demonstrated equal usability across different genders, weight statuses (normal vs. overweight/obese), and screen time levels.
• Participants responded positively to tailored motivational messages promoting healthy habits.
• The app was well-received by students from diverse socioeconomic backgrounds.

Conclusions:

• The mobile app prototype is a viable and effective platform for theory-based behavioral interventions in childhood obesity prevention.
• The app's design successfully engages early adolescents in adopting healthier eating and active living habits.
• This intervention holds potential for addressing health disparities in childhood obesity.