It is known that physical exercises have benefits such as increase in resting metabolism and reduction in subcutaneous and visceral fat; increase in muscle tone and strengthening of joints; improvement of blood lipid profile; reduction of blood arterial pressure and glucose levels; improvement of sleep, among others.

In preoperative bariatric surgery, the practice of physical exercises is one of the preventive measures that aims to prepare the patient physically, mentally and behaviorally for a good surgical intervention. It is necessary for the patient to perform aerobic, flexibility and bodybuilding exercises with regularity of specific days and times so that this routine becomes a habit and can be reproduced in the post-operative phase.
The process of physical adaptation is slow and must happen gradually, which requires patience and discipline.

Therefore, it is important to note that physical exercise should be performed for a minimum of 12 weeks before surgery, considering that it is during this preparatory phase that the incorporation of a new lifestyle takes place.

In the post-operative period, it is important to highlight and combat the possible physical comorbidities that can affect the operated patient, such as: flaccidity, premature aging, postural hypotonias, fluid retention and others. As a rule, 07 days after the surgical procedure, the patient is advised to perform light physical activities with varying durations of 5 to 15 minutes. And after 30 to 40 days, it is necessary to incorporate work with weights.

We need to consider some important points:

• Before starting any physical activity, it is advisable to perform cardiovascular function tests and a complete physical evaluation to identify possible physiological and/or mechanical limitations.
• Keep in mind that there is no ideal physical activity for weight loss. The exercises that promote greater fat oxidation are those which an intensity is supported for longer.
• Perform supervised exercises, always respecting the individualities and limitations of each patient.