Objective:

To identify the determinants of kinesiophobia in patients following percutaneous coronary intervention and examine their interplay in driving maladaptive fear and influencing engagement in home-based rehabilitation.

Key Findings:

• Living alone, urban residence, previous PCI history, comorbidities, clinical symptom severity, and lower cardiac rehabilitation knowledge scores significantly predicted kinesiophobia levels, with specific statistical values provided.
• The quantitative analysis explained 46.5% of the variance in Tampa Scale for Kinesiophobia (TSK) scores, indicating a strong predictive model.
• Qualitative findings revealed themes related to catastrophic interpretation of symptoms, knowledge deficits, symptom misinterpretation, and positive perceptions, with illustrative quotes from participants.

Interpretation:

The study proposes an explanatory framework derived from the Fear-Avoidance Model, delineating pathways of fear origination, amplification, and consolidation through avoidance cycles, specifically relating these pathways to the identified determinants.

Limitations:

• The study's findings may not be generalizable beyond the specific population sampled, particularly in different cultural or healthcare contexts.
• The reliance on self-reported measures may introduce bias, potentially affecting the accuracy of kinesiophobia assessments.

Conclusion:

The study highlights the complex interplay of factors contributing to kinesiophobia in post-PCI patients and suggests areas for targeted intervention, such as educational programs and psychological support tailored to these determinants.