PressureBlood PressureBlood Flow VelocityHydrostatic PressureBlood Pressure DeterminationHypertensionTransducers, PressureIntracranial PressureIntraocular PressureBlood Pressure Monitoring, AmbulatoryAir PressureAtmospheric PressureHeart RateVenous PressureHemodynamicsVentricular PressureArterial PressureDiastoleSystolePulsatile FlowTime FactorsEchocardiography, DopplerVascular ResistancePulsePulmonary Wedge PressureCentral Venous PressureRegional Blood FlowAntihypertensive AgentsNeural ConductionDogsBiomechanical PhenomenaOsmotic PressureCerebrovascular CirculationManometryCardiac OutputVentricular Function, LeftUltrasonography, DopplerModels, CardiovascularCerebrospinal Fluid PressureArteriesProspective StudiesUltrasonography, Doppler, TranscranialRheologyMyocardial ContractionCoronary CirculationElasticityReference ValuesPostureHeartAnalysis of VarianceEchocardiography, Doppler, PulsedEchocardiographyAortaPositive-Pressure RespirationComplianceReproducibility of ResultsHypotensionMiddle Cerebral ArteryContinuous Positive Airway PressureUltrasonography, Doppler, ColorLaser-Doppler FlowmetryHeart VentriclesMuscle ContractionPortal PressureUltrasonography, Doppler, PulsedMovementSympathetic Nervous SystemPulse Wave AnalysisMitral ValveLower Body Negative PressureModels, BiologicalCarbon DioxideOxygenEchocardiography, Doppler, ColorRespirationRats, Sprague-DawleyLinear ModelsFollow-Up StudiesStress, MechanicalPressoreceptorsRegression AnalysisEquipment DesignRotationRats, Inbred SHRAccelerationKidneyReninCarotid ArteriesTreatment OutcomeReflexBlood VolumeKineticsPredictive Value of TestsPulmonary ArteryBrachial ArteryOphthalmic ArteryCerebral ArteriesMonitoring, PhysiologicRespiratory MechanicsMicrocirculation