Reactive Oxygen SpeciesOxygen ConsumptionFree RadicalsOxygenMyocardiumFree Radical ScavengersHydroxyl RadicalElectron Spin Resonance SpectroscopyHeartOxidation-ReductionEnergy MetabolismAntioxidantsMyocardial StunningMyocardial ContractionOxidative StressCoronary CirculationDogsHydrogen PeroxideSuperoxide DismutaseTime FactorsLipid PeroxidationPicratesSuperoxidesHemodynamicsHydroxidesMitochondriaHeart RateNitrogen OxidesCyclic N-OxidesMyocardial IschemiaAlcohol DrinkingRats, WistarExercise TestSpin LabelsXanthine OxidasePhysical ExertionCatalasePartial PressureSinglet OxygenMyocardial Reperfusion InjuryLactic AcidHeart VentriclesCarbon DioxideAscorbic AcidKineticsPerfusionRats, Sprague-DawleyExerciseAnoxiaSpin TrappingLactatesGlucoseLipid PeroxidesAdenosine TriphosphateNitric OxidePolarographyMyocardial InfarctionDose-Response Relationship, DrugOxygen Inhalation TherapyCell RespirationDietMalondialdehydeGlutathioneMitochondria, HeartCardiac OutputBlood PressureBody Temperature RegulationMyocardial ReperfusionBody TemperatureEthanolSwineCardiotonic AgentsBody WeightRabbitsPlant ExtractsMyocytes, CardiacDisease Models, AnimalExercise ToleranceHeart FailureMuscle, SkeletalCells, CulturedOxidative PhosphorylationVentricular Function, LeftRegional Blood FlowRespirationOxidantsCalciumIon-Selective ElectrodesLuminescent MeasurementsAnalysis of VarianceIronGlycolysisOxygen IsotopesBiphenyl CompoundsModels, BiologicalPulmonary Gas ExchangeElectron TransportCoronary VesselsBlood Gas AnalysisAerobiosis