Myocardial InfarctionExercise TestPerfusionExercise ToleranceExerciseElectrocardiographyExercise TherapyInfarctionTime FactorsPhysical ExertionOxygen ConsumptionCoronary AngiographyCerebral InfarctionAngioplasty, Balloon, CoronaryTreatment OutcomeAngina PectorisThrombolytic TherapyProspective StudiesRisk FactorsHeart RateCoronary DiseasePerfusion ImagingMyocardial ReperfusionAnterior Wall Myocardial InfarctionVentricular RemodelingVentricular Function, LeftCoronary CirculationCreatine KinasePredictive Value of TestsFollow-Up StudiesPhysical EnduranceMyocardial IschemiaMyocardial Perfusion ImagingPrognosisHeartMyocardiumStroke VolumeStreptokinaseAnaerobic ThresholdHemodynamicsEchocardiographyTomography, Emission-Computed, Single-PhotonHeart FailureCoronary Artery DiseaseVentricular Dysfunction, LeftPhysical FitnessCoronary Care UnitsFibrinolytic AgentsBlood PressureAngina, UnstableAsthma, Exercise-InducedRisk AssessmentChest PainCoronary VesselsPlatelet Aggregation InhibitorsRetrospective StudiesPulmonary Gas ExchangeAdrenergic beta-AntagonistsMyocardial RevascularizationBicyclingStentsMuscle, SkeletalBiological MarkersDouble-Blind MethodHeart VentriclesPercutaneous Coronary InterventionAcute DiseaseRecurrenceCoronary ThrombosisThallium RadioisotopesProportional Hazards ModelsCoronary Artery BypassShock, CardiogenicInferior Wall Myocardial InfarctionRestCase-Control StudiesHospital MortalityArrhythmias, CardiacCohort StudiesLactic AcidCardiac CatheterizationTechnetium Tc 99m SestamibiMultivariate AnalysisSensitivity and SpecificityAnalysis of VarianceRegional Blood FlowStrokeSurvival AnalysisDeath, Sudden, CardiacHeart Function TestsIncidenceErgometrySeverity of Illness IndexCardiovascular AgentsRegistriesChi-Square DistributionElectrocardiography, AmbulatoryAge FactorsDipyridamoleAspirin