Effectiveness of Combined Aerobic and Strength Training in Acute and Chronic Adaptations in Patients With Heart Failure

Patients with chronic heart failure (CHF) underwent to a hospital-based cardiac rehabilitation (CR) program in the Lisbon district Hospitals will be recruited. The participants will be randomized into one of the following exercise groups: A) combined exercise training with more aerobic training and less strength training (CAT); B) combined exercise training with more strength training and less aerobic training (CST). The investigators will test two proportions in combined training, CAT and CST. There hasn\'t been any data on the so called combined regimes, which include both aerobic exercise with HIIT and ST and the investigators will evaluate the effects of acute and chronic response. The research project will contribute to a better understanding in several aspects that are unexplained by scientific research.