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Abstract
Background and purpose: Coronary artery disease (CAD) is accountable for more than 7 million deaths each year according to the World Health Organization (WHO), Aerobic interval training (AIT) is a more effective modality for improving aerobic fitness in patients with coronary artery disease or left ventricular dysfunction. The aim of this study was to investigate the effect of interval training exercises on cardiac muscle performance and functions through investigation of left ventricular ejection fraction and cardiac output. Results: Aerobic interval training had significantly improve cardiac output and left ventricular ejection fraction in group (B) (study group) by improvement percentage of (8.17%) and (14.86%) respectively, but there was no significant changes in group (A) (control group) Conclusions: It was concluded that aerobic interval exercise training had a greater benefit on cardiac output and left ventricular ejection fraction in ischemic heart disease patients