Letter by Iellamo and Volterrani Regarding Article, “High-Intensity Interval Training in Patients With Heart Failure With Reduced Ejection Fraction”
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To the Editor:
It is with great interest the we read about the SMARTEX Heart Failure Study (Study of Myocardial Recovery After Exercise Training in Heart Failure),1 which compared the effects of high-intensity interval training (HIIT) and moderate continuous training (MCT) in reversing left ventricular remodeling and increasing aerobic capacity in patients with heart failure and depressed systolic function. The SMARTEX Study1 challenges the early findings by Wisløff et al2 on the superior benefits of HIIT over MCT in chronic heart failure and confirms, on a larger scale, the results from our3,4 and other laboratories5 suggesting that HIIT is equally as effective as MCT in …