Reihaneh Zavar1, Afshin Amirpour2,3, Javad Shahabi4. 1. Cardiac Rehabilitation Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran. 2. Cardiac Rehabilitation Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran. amirpur.69@yahoo.com. 3. School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran. amirpur.69@yahoo.com. 4. Heart Failure Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.