Kumar and his colleagues (2023) conducted a research on the effect of yoga-based cardiac rehabilitation after coronary artery bypass surgery in patients with coronary artery disease with moderate to severe left ventricular dysfunction in India (New Delhi). In this prospective randomized controlled trial, the intervention group was selected to undergo yoga in addition to cardiac rehabilitation based on physical therapy.The control group received only standard physical therapy care. After 6 months, weight, fasting blood sugar (FBS), high-density lipoprotein (HDL), low-density lipoprotein (LDL), triglyceride (TG), LDL/HDL ratio, high-sensitivity C-reactive protein (hs- CRP), perceived stress scale (PSS), negative affect scale, positive and negative affect score (PANAS) decreased significantly in intervention group patients. A significant increase in quality of life, and left ventricular ejection fraction (LVEF) was also observed. (1).
Sharma et al. (2020) conducted a study aimed at integrating yoga practice into a cardiac rehabilitation program in Bangalore, Karnataka, India. This study is a randomized control trial. Heart patients in the intervention group participated in the yoga center classes of the hospital 3 days a week for 12 weeks. The group practicing yoga showed a significant decrease in depression, anxiety and a significant increase in quality of life scores in 3 months compared to the control group. (2).
Chandrababu et al (2019) conducted a study on the effect of pranayama on anxiety and pain in cardiac surgery patients: a non-randomized controlled trial in India. The results of the study showed that patients in the intervention group had a significant reduction in anxiety and pain compared to the control group. (3).
