Participants will be excluded from the study if they present lowered level of consciousness or who are unable to obey simple commands, acute decline in neurological status, hypotension (MAP less 60 mmHg) or hypertension (MAP up to 120 mmHg), tetany, continuous renal replacement therapy, Body Mass Index - BMI up to 30 kg/m2, previous thoracic surgery, chest instability, presence of chest tube, with complications from other serious underlying diseases, such as decompensated diabetes, obstructive and restrictive pulmonary disease, coronary heart disease, stroke with sequelae, fractures with sequelae, cancer, osteoporosis, immunodeficiency, fever, use of illicit drugs, congenital malformations, deformities, rejection of the treatment and any clinical alteration that makes the handling and execution of the technique unfeasible.

Participants will be excluded from the study if they present lowered level of consciousness or who are unable to obey simple commands, acute decline in neurological status, hypotension (MAP less 60 mmHg) or hypertension (MAP up to 120 mmHg), tetany, continuous renal replacement therapy, Body Mass Index - BMI up to 30 kg/m2, previous thoracic surgery, chest instability, presence of chest tube, with complications from other serious underlying diseases, such as decompensated diabetes, obstructive and restrictive pulmonary disease, coronary heart disease, stroke with sequelae, fractures with sequelae, cancer, osteoporosis, immunodeficiency, fever, use of illicit drugs, congenital malformations, deformities, rejection of the treatment and any clinical alteration that makes the handling and execution of the technique unfeasible.