Inspiratory Muscle Training and Pulmonary Function in Patients Submitted to Bariatric Surgery

Obesity is defined as a body mass index greater than or equal to 30 kg / m2 and represents a public health problem that affects the world population. It is associated with a higher frequency of cardiovascular, metabolic diseases, and respiratory morbidities, which affect the quality of life of patients. Its treatment comprises different strategies, however, due the conventional treatments, surgical treatment has been the most sought after today. Objectives: To evaluate the effectiveness of preoperative inspiratory muscle training in the evolution of respiratory muscle strength in patients undergoing bariatric surgery. Methodology: Randomized clinical trial. All patients will be assessed in the pre operative period and randomized into 2 groups: control group and intervention group. The main variables are maximum inspiratory and expiratory muscle strength (MIP and MEP), peak cough flow (PCF) and pain. Control group will perform proposed respiratory physiotherapy, aerobic exercises and use of incentive inspirometry, the intervention group will perform proposed physiotherapy, aerobic exercises and use of Powerbreathe for inspiratory muscle training. Both groups will perform 10 non consecutive face-to-face physiotherapy sessions ( up 30 days before surgery). After the surgical intervention, they will be evaluated on the first and 30th postoperative days in relation to the same variables and pulmonary complications. Statistical Analysis: Sample calculation performed through a previous study: 42 patients per group. After the intervention, they will be evaluated on the second postoperative day for days of hospitalization and pulmonary complications. Statistical Analysis: Sample calculation performed through a previous study: 42 patients per group. After the intervention, they will be evaluated on the second postoperative day for days of hospitalization and pulmonary complications. Statistical Analysis: Sample calculation performed through a previous study: 42 patients per g