Oxygen ConsumptionOxygenCoronary CirculationMyocardiumDogsHemodynamicsHeartMyocardial ContractionHeart RateEnergy MetabolismCardiac OutputDobutamineCoronary VesselsBlood PressureLactatesLactic AcidPrenylamineVascular ResistanceCardiotonic AgentsPhysical ExertionIsothiuroniumVentricular Function, LeftVentricular FunctionCarbon RadioisotopesAdenosineMyocardial StunningCardiac Pacing, ArtificialTomography, Emission-ComputedAcetatesReactive Oxygen SpeciesMyocardial IschemiaExtracorporeal CirculationPerfusionPropranololHeart VentriclesCarbon DioxideVeratrineHeart Arrest, InducedStroke VolumeNitric OxideCalcium ChlorideGlucoseMitochondria, HeartPhosphocreatineCoronary DiseaseVentricular PressureRegional Blood FlowHeart FailureHyperemiaHalothaneNorepinephrineAdrenergic beta-AntagonistsTime FactorsCardiomyopathy, DilatedVasodilator AgentsSwineAnesthesiaPartial PressureAngina PectorisIsoproterenolAdenosine TriphosphateVasodilationDepression, ChemicalNitroglycerinBlood Flow VelocityModels, CardiovascularMyocardial ReperfusionCitric Acid CyclePhysical Conditioning, AnimalDose-Response Relationship, DrugExercise TestBradykininTheophyllineFatty AcidsDiastoleAdrenergic beta-AgonistsG0 PhaseEnzyme InhibitorsNitroarginineFatty Acids, NonesterifiedSystoleNitric Oxide SynthaseIsofluraneMyocardial Reperfusion InjuryNG-Nitroarginine Methyl EsterEchocardiographyElectrocardiographyAlcohol DrinkingCardiomegalyOxidation-ReductionBlood VolumeBlood Gas AnalysisMagnetic Resonance SpectroscopyRabbitsMitochondriaGuinea PigsVentricular Dysfunction, LeftExerciseCalciumOxygen Inhalation Therapy