Respiratory MechanicsLung ComplianceAirway ResistanceLung Volume MeasurementsRespiration, ArtificialPulmonary Gas ExchangePositive-Pressure RespirationExpiratory Reserve VolumeWork of BreathingAir PressureVentilators, MechanicalTidal VolumeRespiratory Distress Syndrome, AdultLungRespiratory MusclesRespiratory Physiological PhenomenaMechanicsRespiratory Function TestsFunctional Residual CapacityOscillometryProne PositionPulmonary VentilationInhalationExhalationThoraxPneumoperitoneum, ArtificialThoracic WallBlood Gas AnalysisRespirationElasticityVentilator WeaningTotal Lung CapacityPressurePositive-Pressure Respiration, IntrinsicSpirometryBiomechanical PhenomenaLung Diseases, ObstructiveRespiratory Distress Syndrome, NewbornRespiratory InsufficiencyForced Expiratory VolumeAnesthesia, GeneralMonitoring, PhysiologicPostoperative PeriodModels, BiologicalSwineCarbon DioxideOxygenHemodynamicsPulmonary Disease, Chronic ObstructiveMechanical ProcessesStress, MechanicalInfant, NewbornQuantum TheoryTorsion, MechanicalProspective Studies