A Comprehensive Planning Framework for Designing Effective Physical Activity Interventions in Youth.

Area of Science:

• Public Health
• Pediatric Health
• Behavioral Science

Background:

• Insufficient physical activity (PA) in youth necessitates effective interventions.
• Current PA promotion efforts require updated planning frameworks for children and adolescents.
• Interventions must address age-specific determinants of PA through coordinated, multilevel strategies.

Purpose of the Study:

• To present a comprehensive planning framework for designing physical activity (PA) intervention research in youth.
• To consolidate decades of progress in PA promotion for young people into a usable model.

Main Methods:

• A targeted literature search identified PA models, determinants, and strategies for youth.
• Information was synthesized into tables and used to develop a planning framework.
• The framework was reviewed by coauthors for refinement.

Main Results:

• The APPLE (Age, PA focus, Place and time, Leverage relevant influences and strategies, Enjoyable PA opportunities) Framework was developed.
• This framework incorporates key elements for planning PA interventions.
• It provides guiding questions and conceptual model templates for intervention design.

Conclusions:

• The APPLE Framework facilitates the development of comprehensive conceptual models for youth PA interventions.
• It aims to guide researchers in designing effective PA promotion programs.
• Further research is recommended to refine the framework for optimal application in youth PA intervention studies.