Oxygen ConsumptionOxygenCoronary CirculationMyocardiumDogsHemodynamicsHeartMyocardial ContractionHeart RateEnergy MetabolismCardiac OutputDobutamineCoronary VesselsBlood PressureLactatesLactic AcidPrenylamineVascular ResistanceCardiotonic AgentsPhysical ExertionIsothiuroniumVentricular Function, LeftVentricular FunctionCarbon RadioisotopesAdenosineMyocardial StunningCardiac Pacing, ArtificialTomography, Emission-ComputedAcetatesMyocardial IschemiaExtracorporeal CirculationPerfusionReactive Oxygen SpeciesPropranololHeart VentriclesCarbon DioxideVeratrineHeart Arrest, InducedStroke VolumeNitric OxideCalcium ChlorideMitochondria, HeartPhosphocreatineGlucoseCoronary DiseaseVentricular PressureRegional Blood FlowHeart FailureHyperemiaHalothaneNorepinephrineAdrenergic beta-AntagonistsCardiomyopathy, DilatedVasodilator AgentsSwineAnesthesiaPartial PressureAngina PectorisIsoproterenolTime FactorsVasodilationDepression, ChemicalAdenosine TriphosphateNitroglycerinBlood Flow VelocityModels, CardiovascularMyocardial ReperfusionCitric Acid CyclePhysical Conditioning, AnimalDose-Response Relationship, DrugExercise TestBradykininTheophyllineFatty AcidsDiastoleAdrenergic beta-AgonistsNitroarginineFatty Acids, NonesterifiedSystoleNitric Oxide SynthaseEnzyme InhibitorsIsofluraneMyocardial Reperfusion InjuryNG-Nitroarginine Methyl EsterEchocardiographyElectrocardiographyAlcohol DrinkingCardiomegalyOxidation-ReductionBlood VolumeBlood Gas AnalysisMagnetic Resonance SpectroscopyRabbitsGuinea PigsVentricular Dysfunction, LeftExerciseMitochondriaOxygen Inhalation TherapyPolarographyDisease Models, Animal