Effect Of Long Term Combined Cardiac Rehabilitation And Yoga Training On Heart Rate Variability In POST CABG Patients

Coronary artery bypass graft (CABG) surgery has side effects for the patient's heart. One of the most important adverse effects after CABG surgery is disorder and heart rate abnormalities and heart rate variability. The purpose of this study was to investigate the effect of long-term yoga and rehabilitation training on HRV parameters of Post CABG patients.

In this semi experimental study, 14 CABG patients randomly divided into two groups: rehabilitation (control; N=7) and rehabilitation and yoga (experimental, N=7). After preliminary evaluations, performing exercise test and HRV assessment, the patients underwent 8 weeks of training program, 3 times a week, in Tehran's Shahid Rajaee Heart Hospital. T-test was used to evaluate the intra-group differences and independent t-test was used to evaluate the difference between groups (p≤0.05).

The results showed that there was a significant difference in the SDNN of experimental group (p=0.05) and LF (p=0.032) and HF (p=0.017) in the control group. Also, there was a significant difference between the two groups in HF (p=0.030)

The results of the study showed that the combination of yoga and rehabilitation exercises has beneficial effects on heart rate variability. By improving the HRV index, the mortality rate associated with changes in heart rate and autonomic impairment decreases. Therefore, a combination of yoga and rehab programs for Post CABG patients are suggested.