Positive-Pressure RespirationPressureContinuous Positive Airway PressureSleep Apnea, ObstructivePolysomnographyBlood PressureHydrostatic PressureBlood Pressure DeterminationHypertensionTransducers, PressureIntracranial PressureIntraocular PressureBlood Pressure Monitoring, AmbulatoryAir PressureAtmospheric PressureVenous PressureTitrimetryArterial PressureVentricular PressureHeart RateCalorimetryHemodynamicsCentral Venous PressureAntihypertensive AgentsPulmonary Wedge PressureOsmotic PressureSystoleVascular ResistanceTime FactorsPulseDiastoleDogsManometryCerebrospinal Fluid PressureCardiac OutputPortal PressureRegional Blood FlowHypotensionThermodynamicsHydrogen-Ion ConcentrationPotentiometrySympathetic Nervous SystemProspective StudiesPressoreceptorsBlood Flow VelocityReninRats, Inbred SHRKidneyOxygenLower Body Negative PressureKineticsRespiratory MechanicsRespirationBaroreflexPostureComplianceMonitoring, PhysiologicTreatment OutcomeDose-Response Relationship, DrugRats, Sprague-DawleyHeartArteriesHydrocephalus, Normal PressureCarbon DioxideBinding SitesAnalysis of VarianceCircadian RhythmAortaProtein BindingTidal VolumeFollow-Up StudiesTonometry, OcularCardiovascular SystemSphygmomanometersNorepinephrineReference ValuesReflexSodium ChlorideDouble-Blind MethodModels, CardiovascularPulsatile FlowHypertension, RenalRats, Inbred WKYAngiotensin IIDisease Models, AnimalPulmonary ArterySpectrometry, FluorescenceRespiration, ArtificialVentricular Function, LeftRabbitsPerfusionTemperatureBlood Gas AnalysisVasoconstrictionIntracranial HypertensionElasticityBody WeightSodium Chloride, DietaryMagnetic Resonance SpectroscopyBlood Volume