Background and Aim: The aim of this study was to compare the effectiveness of Islamic-based religious psychotherapy, breathing-based meditation and HRV biofeedback therapy on increasing HRV and resonance frequency (psychophisologic harmony) and decreasing depression among CABG patients.

Material and Method: Sixty CABG patients were selected and randomly assigned to three groups: religion, breathing techniques and control ones. Each group consisted of  20 patients The experimental groups received a weekly two-hour session with homework for eight weeks to increase psychophysiolgical harmony. The control group received only their normal hospital interventions. HRV and resonance frequency and DASS-21questionnaire were used for patient assessment before and after intervention. One –way ANCOVA and descriptive graphs were used for data analysis.

Results: The results showed that religion related intervention led to increased psychophysiolgical harmony and decreased depression in CABG patients

Conclusion: Most CABG patients developed some degree of depression which may be ignored in the treatment centers. Therefore psychological intervention and breathing-based meditation intervention are recommended.

Kew words: Islamic religion therapy, Breathing and HRV biofeedback, Depression, heart rate variability (HRV), Resonance frequency (psychophysiologic harmony).

Received: Sep 2, 2016      Accepted: Jan 17, 2017