Physiological Behavior of Respiratory Maneuvers

The physiological repercussions resulting from the maximal respiratory maneuvers together with the synchronized analysis of the chest cavity mobility, pulmonary volume , pulmonary impedance and measurement of Oesophageal pressure is not known. Therefore, this study aims to describe the physiological behavior of maximal respiratory maneuvers through the synchronization between electrical impedance tomography and optoelectronic plethysmography in healthy men.

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).