Dose-Response Relationship, DrugHeart RateTime FactorsBlood PressureCross-Over StudiesRats, Sprague-DawleyRegional Blood FlowDogsHemodynamicsRats, WistarBlood Flow VelocityDouble-Blind MethodCalciumRabbitsKineticsCells, CulturedLiverMaximum Tolerated DoseSoybeansOxygen ConsumptionArea Under CurveBasic Helix-Loop-Helix Leucine Zipper Transcription FactorsBasic-Leucine Zipper Transcription FactorsLikelihood FunctionsTemperatureHydrogen-Ion ConcentrationPhysical EnduranceMuscle ContractionMolecular Sequence DataModels, BiologicalMuscle, SkeletalExercisePhysical ExertionExercise TestAdministration, OralBiomechanical PhenomenaRunningAlgorithmsPhysical FitnessBiological AvailabilityDrug InteractionsHalf-LifeReproducibility of ResultsPhylogenyComputer SimulationProto-Oncogene Proteins c-mycAmino Acid SequenceIsometric ContractionAnaerobic ThresholdChromatography, High Pressure LiquidTreatment OutcomeMyocardial ContractionPositron-Emission TomographyOxygenBicyclingSpectrophotometryHeartAnalysis of VarianceLod ScoreDrug Administration ScheduleRecombinant ProteinsBase SequenceSpecies SpecificityPressureCarbon DioxideMetabolic Clearance RateCattleGenetic LinkageSubstrate SpecificityBiological TransportHot TemperatureModels, StatisticalFluorodeoxyglucose F18SwineMusclesLactic AcidModels, TheoreticalMaximum Allowable ConcentrationBinding SitesLightRadiopharmaceuticalsSensitivity and SpecificityInfusions, IntravenousAdaptation, PhysiologicalElectric StimulationBody WeightProtein BindingEnergy MetabolismAgingEnzyme InhibitorsMembrane PotentialsCulture MediaSpectrometry, FluorescenceMaximal Voluntary VentilationProspective StudiesInjections, IntravenousGuinea PigsReference ValuesOxidation-ReductionChromosome Mapping