Obesity is a global epidemic that contributes to develop several health
complications as cardiovascular disease, hypertension, type II diabetes, etc. In this line, bariatric
surgery appears appears as a possible solution, but it implies a great surgical risk to patients.
However, non-invasive methods as physical activity or diet, have shown to reduce the body
composition and a healthy and health status without. Aerobic exercise is beneficial in severe
obesity, but the discussion about what kind of methodology is better to increase maximal fat
oxidation (MFO)during exercise has lasted for a long time. The aim of this study was to compare
the effects of high intensity interval training (HIIT) versus training at individual maximal fat
oxidation intensity (Fatmax) on body composition, cardiometabolic risk factors and
cardiorespiratory fitness in women with severe obesity.