Parental Intention for Health Promotion in Children with Disabilities: Extending the Theory of Planned Behavior with Parenting Stress

<b>Background/Objectives</b>: This study applies an Extended Theory of Planned Behavior, integrating parenting stress to examine factors influencing parental intentions to participate in health promotion programs for children with disabilities. <b>Methods</b>: Data (<i>n</i> = 345) were collected and analyzed using Structural Equation Modeling. <b>Results</b>: Results indicated that parenting stress affects intention indirectly through subjective norms and perceived behavioral control, with attitude playing a limited mediating role. Significant indirect effects were found from the child domain via attitude, and from the parent domain via both subjective norms and perceived behavioral control, while the sequential double-mediation pathway was not significant. <b>Conclusions</b>: These findings highlight the importance of addressing both social expectations and perceived capability in program design, alongside strategies to reduce structural barriers and enhance psychological and social support. Implications for culturally responsive interventions and the integration of action planning are presented.