Physiological Behavior of Respiratory Maneuvers

Inclusion Criteria:

• Will be included in the study male volunteers,
• BMI greater than or equal to 18.5 and less than 25 kg / m2, considered adequate or eutrophic (MS, 2011)
• Chest circumference between 44 and 55 cm if fitted to the electrical impedance tomography (EIT) strap size P or M;
• systolic blood pressure lower than 140 mmHg and greater than 100 mmHg
• diastolic blood pressure greater than 60 mmHg and lower than 90 mmHg (VI Brazilian Guidelines for Hypertension, 2010)
• without reports of cardiovascular or pulmonary diseases and symptoms Last month.

Exclusion Criteria:

• Volunteers who refuse to participate in the study will be excluded from the survey;
• Presence of cardiac dysfunction assessed by echocardiography;
• Altered pulmonary function by spirometry (PEREIRA et al, 2001) and manovacuometry according to predicted values for healthy individuals (PESSOA et al, 2014).
• Presence of tissue injury in the thorax;
• Dysautonomia that may indicate dysfunction of the autonomic nervous system (ANS), with following clinical manifestations: seizures; epilepsy; Anhydrosis and hyperhidrosis; Neurogenic bladder (CASTRO et al, 1992); (Stewart et al., 2004 and 2005)
• individuals who donated blood or had significant blood loss within 30 days prior to the start of the study (Navarro et al, 1997).