OxygenPressureBlood PressureOxygen ConsumptionReactive Oxygen SpeciesHydrostatic PressureBlood Pressure DeterminationHypertensionTransducers, PressureIntracranial PressureOxygen Inhalation TherapyIntraocular PressureAtmospheric PressureBlood Pressure Monitoring, AmbulatorySinglet OxygenAir PressureVenous PressureHeart RateArterial PressureVentricular PressureHemodynamicsCentral Venous PressurePulmonary Wedge PressureAntihypertensive AgentsTime FactorsOxygen IsotopesVascular ResistanceHyperbaric OxygenationOsmotic PressureAnoxiaSystoleCarbon DioxideDogsCardiac OutputRegional Blood FlowPulsePositive-Pressure RespirationDiastoleRespirationPartial PressureBlood Gas AnalysisManometryOxidative StressOximetryContinuous Positive Airway PressureCerebrospinal Fluid PressureOxidation-ReductionRats, Sprague-DawleyHydrogen PeroxideBlood Flow VelocityHypotensionPortal PressureProspective StudiesSympathetic Nervous SystemHeartKidneyMonitoring, PhysiologicAnalysis of VarianceDose-Response Relationship, DrugPulmonary Gas ExchangeArteriesNitric OxideRats, Inbred SHRRespiratory MechanicsCerebrovascular CirculationHemoglobinsPressoreceptorsReninDisease Models, AnimalAntioxidantsPerfusionRespiration, ArtificialRats, WistarOxyhemoglobinsLower Body Negative PressureMyocardiumPostureModels, BiologicalPulmonary ArteryAortaBaroreflexBlood VolumeTreatment OutcomeTidal VolumeReference ValuesNorepinephrineCardiovascular SystemModels, CardiovascularSuperoxide DismutaseComplianceVasoconstrictionPhysical ExertionExerciseBlood Gas Monitoring, TranscutaneousCoronary CirculationCircadian RhythmHyperoxiaHydrocephalus, Normal PressureExercise TestFree Radicals