Oxygen ConsumptionOxygenReactive Oxygen SpeciesOxidative StressHydrogen PeroxideEnergy MetabolismMitochondriaSinglet OxygenOxidation-ReductionOxygen Inhalation TherapyAntioxidantsNADPH OxidaseFree Radical ScavengersPartial PressureSuperoxide DismutaseSuperoxidesCatalaseAnoxiaCarbon DioxidePhysical ExertionExercise TestTime FactorsOxygen IsotopesAlcohol DrinkingMyocardiumHeart RateExerciseCell RespirationPolarographyLactic AcidAcetylcysteineGlucoseHemodynamicsOxidantsLactatesMembrane Potential, MitochondrialCells, CulturedFree RadicalsReactive Nitrogen SpeciesGlutathioneNitric OxideBody Temperature RegulationApoptosisRespirationCardiac OutputAdenosine TriphosphateDose-Response Relationship, DrugIon-Selective ElectrodesOximetryDietExercise ToleranceCoronary CirculationPulmonary Gas ExchangeLipid PeroxidationDogsHyperbaric OxygenationAerobiosisBody TemperatureBlood Gas AnalysisSignal TransductionRats, Sprague-DawleyXanthine OxidaseMuscle, SkeletalCyclic N-OxidesLuminescent MeasurementsBlood PressureModels, BiologicalOxidative PhosphorylationCell HypoxiaHemoglobinsMitochondria, HeartRats, WistarKineticsEthanolElectron TransportGlycolysisOnium CompoundsHeartPhysical EnduranceCell SurvivalOxyhemoglobinsMitochondrial ProteinsHyperoxiaBody WeightRegional Blood FlowUncoupling AgentsPerfusionBasal MetabolismAnaerobic ThresholdRotenoneMice, Inbred C57BLEnzyme InhibitorsAnaerobiosisAnalysis of VarianceRunningBeveragesFruitElectron Transport Complex IVCell DeathAscorbic Acid