Heart RateBlood PressureHeartPressureBlood Pressure DeterminationHypertensionBlood Pressure Monitoring, AmbulatoryAntihypertensive AgentsHemodynamicsHeart FailureSystoleHydrostatic PressureAutonomic Nervous SystemHeart Rate, FetalSympathetic Nervous SystemBlood Pressure MonitorsTime FactorsBaroreflexDiastoleHypotensionHeart DiseasesCardiovascular SystemRats, Inbred SHRPulseArterial PressureReninAdrenergic beta-AntagonistsTelemetryDogsCircadian RhythmCardiac OutputProspective StudiesPressoreceptorsHeart TransplantationElectrocardiographyRisk FactorsHeart Defects, CongenitalIntracranial PressureVascular ResistanceCardiovascular Physiological PhenomenaNorepinephrineIntraocular PressureCardiovascular DiseasesRegional Blood FlowTransducers, PressureKidneyFetal HeartExercise TestRespirationDouble-Blind MethodMyocardiumFollow-Up StudiesExerciseReference ValuesPostureMyocardial ContractionPropranololRats, Sprague-DawleyOxygen ConsumptionBody WeightVenous PressureRats, Inbred WKYElectrocardiography, AmbulatoryDose-Response Relationship, DrugReflexVentricular PressureAngiotensin IIAnalysis of VarianceHeart AtriaBlood Flow VelocitySphygmomanometersVentricular Function, LeftPhysical ExertionAtmospheric PressureCoronary DiseaseEchocardiographyAtenololCentral Venous PressureTreatment OutcomeSodium Chloride, DietaryBradycardiaPhenylephrinePropanolaminesHypertension, RenalAir PressureRestCross-Over StudiesMonitoring, PhysiologicRegression AnalysisSodium, DietaryAge FactorsRenin-Angiotensin SystemArteriesRats, WistarHeart Function TestsBody Mass IndexCross-Sectional StudiesHypertrophy, Left VentricularCohort StudiesAngiotensin-Converting Enzyme Inhibitors