Effect of Eight Weeks of High-Intensity Interval Training and Moderate-Intensity Continuous Training on HRR at 1, 2 and 3 minutes and Lipid Profile in Cardiac Patients Post-Coronary Artery Bypass Graft

Background: High-intensity interval training is a new training method that has been less explored in patients. Aim: The purpose of this study was to compare the effect of eight weeks of interval training with continuous training on changes in HRR and lipid profile in cardiac patients post-coronary artery bypass graft. Methods: In this clinical study, 30 cardiac patients of Tehran Heart Centerthat hadundergone CABG surgery were randomly divided into two groups, interval and continuous training. The protocols included 4rep × 4 min at 90-95% for interval group, and 60-80 minutes at 70-85% peak HR for continuous group. HRmax, HRR at 1, 2 and 3 min following Bruce test was assessed before and after the training program. The collected data were analyzed using SPSS software version 16 and ANOVA test (p