Letter by Bianchi Regarding Article, “High-Intensity Interval Training in Patients With Heart Failure With Reduced Ejection Fraction”
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To the Editor:
Ellingsen et al1 evaluated the effects of high-intensity interval training in comparison with continuous moderate training in patients with chronic heart failure (CHF) and reduced ejection and reported no significant differences in peak oxygen uptake and cardiac function between the 2 exercise training modalities. However, some physiological aspects that could interfere with …