Breathing ExercisesWork of BreathingMouth BreathingRespirationRespiratory MechanicsSleep Apnea SyndromesTidal VolumePulmonary VentilationInhalationApneaCarbon DioxideRespiratory Physiological PhenomenaPolysomnographyOxygenIntermittent Positive-Pressure BreathingRespiratory RateRespiratory MusclesDiaphragmAirway ResistanceHeliumSnoringExhalationAnoxiaRespiratory CenterHyperventilationSleep Apnea, CentralRespiratory Function TestsChemoreceptor CellsVentilator WeaningAirPulmonary Gas ExchangeSleep Apnea, ObstructiveBlood Gas AnalysisRespiration, ArtificialFetal MovementCheyne-Stokes RespirationPlethysmographySleepPlethysmography, Whole BodyAir PressureAirway ObstructionLung Volume MeasurementsPartial PressureThoraxLungPositive-Pressure RespirationRespiratory InsufficiencyRespiration Disorders