Lion Hearts: Using the Intervention Mapping Framework to Develop a Family-Based CrossFit Program for Health Behavior...

Area of Science:

• Public Health
• Behavioral Science
• Exercise Science

Background:

• Physical inactivity is a major risk factor for chronic diseases across all age groups.
• Mothers with young children encounter specific obstacles to exercise, such as time poverty and fatigue.
• Existing community fitness resources can be leveraged to promote family health.

Purpose of the Study:

• To describe the development of the Lion Hearts program using the Intervention Mapping (IM) framework.
• To create a multigenerational, family-centered intervention integrating physical activity, strength training, and health education.
• To address barriers faced by mothers in maintaining physical activity.

Main Methods:

• The Intervention Mapping (IM) framework guided the program's development through needs assessment, matrix creation, intervention design, and program production.
• A 12-week program was created, featuring family CrossFit sessions, cardiovascular health workshops, and home-based challenges.
• A train-the-trainer model was employed for delivery through local affiliates.

Main Results:

• The IM framework facilitated the creation of a theoretically sound intervention targeting individual, interpersonal, and environmental behavioral determinants.
• Logic models, behavior change matrices, and implementation materials (family handbooks, coach guides) were developed.
• The intervention successfully integrated physical activity and health education within a family context.

Conclusions:

• Lion Hearts offers a scalable, multigenerational strategy for cardiovascular disease (CVD) prevention by utilizing existing community fitness infrastructure.
• The program's integration within family systems and CrossFit affiliates provides a sustainable model for enhancing physical activity.
• Lion Hearts aims to strengthen family health behaviors and mitigate intergenerational CVD risk.