Resistance Exercise With Blood Flow Restriction by Vascular Occlusion on Myocardial Function in Heart Failure With Reduced Ejection Fraction

"In the BFR-RT group, sessions will consist of 30 repetitions, followed by 3 sets of 15 repetitions at 40% 1-MR (maximal repetition), interspersed with 60 sec of recovery. An arterial occlusion pressure of 50% of systolic pressure will be maintained constant using a digital tourniquet. The cuff will be deflated during the recovery phases.~In the control group (RT group) it will be the same intervention with same intensities but without using BFR."