Volunteers undergoing pulmonary rehabilitation 6 months before the start of the study, pregnant women, previous medical history of respiratory diseases (COPD, asthma, idiopathic pulmonary fibrosis), arterial O2 saturation (SpO2) = 88% at rest, hypertension uncontrolled, cardiovascular (heart failure, hypertension, transplantation, and surgeries), history of use and abuse of illicit drugs, alcoholics, smokers, pacemakers and/or implantable defibrillators, oncologic, metabolic (diabetes) and decompensated, chronic-degenerative kidneys in progression and osteoarticular and cognitive that prevent the performance of the physical exercise. In addition, individuals who present claustrophobia to the use of the NIV mask for training or performing the cardiopulmonary test will be excluded.

Volunteers undergoing pulmonary rehabilitation 6 months before the start of the study, pregnant women, previous medical history of respiratory diseases (COPD, asthma, idiopathic pulmonary fibrosis), arterial O2 saturation (SpO2) = 88% at rest, hypertension uncontrolled, cardiovascular (heart failure, hypertension, transplantation, and surgeries), history of use and abuse of illicit drugs, alcoholics, smokers, pacemakers and/or implantable defibrillators, oncologic, metabolic (diabetes) and decompensated, chronic-degenerative kidneys in progression and osteoarticular and cognitive that prevent the performance of the physical exercise. In addition, individuals who present claustrophobia to the use of the NIV mask for training or performing the cardiopulmonary test will be excluded.