Work of BreathingMouth BreathingRespirationRespiratory MechanicsBreathing ExercisesSleep Apnea SyndromesTidal VolumePulmonary VentilationInhalationApneaCarbon DioxideRespiratory Physiological PhenomenaPolysomnographyOxygenIntermittent Positive-Pressure BreathingRespiratory RateRespiratory MusclesDiaphragmAirway ResistanceHeliumSnoringExhalationDisabled PersonsAnoxiaRespiratory CenterHyperventilationSleep Apnea, CentralRespiratory Function TestsChemoreceptor CellsVentilator WeaningAirPulmonary Gas ExchangeSleep Apnea, ObstructiveBlood Gas AnalysisRespiration, ArtificialPlethysmographySleepFetal MovementCheyne-Stokes RespirationPlethysmography, Whole BodyAir PressureAirway ObstructionLung Volume MeasurementsLungThoraxPartial PressureRespiratory InsufficiencyRespiration DisordersPositive-Pressure RespirationTime FactorsOximetryRespiratory Dead SpacePeriodicitySleep StagesWakefulnessDecompression SicknessPhrenic NerveIntercostal MusclesHeart RateRespiratory SystemRespiratory Protective DevicesHypoventilationHyperoxiaFunctional Residual CapacityElectromyographyOxygen ConsumptionAerosolsLung ComplianceAdenoidectomyOxygen Inhalation TherapyUnited StatesRisk FactorsRespiratory-Gated Imaging TechniquesThoracic WallAbdominal MusclesLung Diseases, ObstructiveTonsillectomyInspiratory CapacityRespiratory TherapyVagotomySpirometryMasksDivingPulmonary Stretch ReceptorsHomeless PersonsMedulla OblongataNoseBlood PressurePrevalencePharynxContinuous Positive Airway PressureLarynxCarotid BodyExpiratory Reserve VolumePressureSupine PositionReflexPlethysmography, ImpedanceDecompressionIntubation, Intratracheal