"Capturing the magic": identifying the active ingredients of a physical activity participation intervention for children and youth with disabilities.

The role of the environment, and specifically support and relationships, may be an essential consideration for enabling physical activity participation. Outcomes may guide program design and implementation to promote and sustain physical activity behaviours for children and youth with disabilities.Implications for rehabilitationThe active ingredients identified in this study may guide the design and implementation of programs to promote and sustain physical activity behaviours of children and youth with disabilities.Leadership qualities and strength-based attitudes may be key characteristics of organisational practice that optimise outcomes for children and families.A "relationship-centred" approach, i.e., a network of children, families, health professionals, peers, mentors, and services in the community, may support children and young people with disabilities to achieve their physical activity participation goals.