Human-centered participatory co-design with children and adults for a prototype lifestyle intervention and implementation strategy in a rural middle school

Purpose: The significance of regular physical activity (PA) in reducing cardiovascular disease (CVD) risk is widely acknowledged. However, children in rural areas encounter specific barriers to PA compared to their urban counterparts. This study employs human-centered participatory co-design, involving community stakeholders in developing a multi-level PA intervention named Hoosier Sport. The primary hypothesis is the co-design sessions leading to the development of a testable intervention protocol. Methods: Two co-design teams, each consisting of six children and six adults, were formed using human-centered participatory co-design facilitated by research faculty and graduate students. The process involved five co-design sessions addressing problem identification, solution generation, solution evaluation, operationalization, and prototype evaluation. Thematic analysis was employed to identify key themes and intervention components. Results: Child co-designers (n = 6) ranged from 6th to 8th grade, averaging 12.6 years (SD = 1.8), while adult co-designers (n = 6) averaged 43.3 years (SD = 8.08). Thematic analysis revealed children emphasizing autonomy, the freedom to choose physical and non-physical activities, and the importance of building peer relationships during PA. Adult interviews echoed the importance of autonomy and choice in activities, with a focus on relatedness through positive role modeling. Conclusion: The prototype intervention and implementation strategies developed constitute a testable intervention aligned with Phase 1 of the ORBIT model. This testable prototype lays the groundwork for a collaborative campus-community partnership between the university and the local community, ensuring mutual benefits and sustainable impact.