Exercise TestExercise TolerancePhysical ExertionExerciseOxygen ConsumptionAngina PectorisPhysical FitnessPhysical Conditioning, AnimalHeart RateElectrocardiographyExercise TherapyCoronary DiseaseMyocardial IschemiaHemodynamicsPhysical EnduranceDouble-Blind MethodTime FactorsRunningAsthma, Exercise-InducedWalkingMuscle, SkeletalAnaerobic ThresholdFollow-Up StudiesPulmonary Gas ExchangeIntermittent ClaudicationRestBlood PressureLactic AcidCardiovascular Physiological PhenomenaBicyclingRespirationCardiac OutputMotor ActivityErgometryLegPulmonary VentilationCoronary CirculationDyspneaAnalysis of VarianceRegional Blood FlowOxygenRespiratory Function TestsHeat ExhaustionAdaptation, PhysiologicalHeartGaitHeart FailureGait Disorders, NeurologicPredictive Value of TestsLactatesEchocardiography, StressStroke VolumeEnergy MetabolismGlycogenHyperventilationCarbon DioxideAdrenergic beta-AntagonistsCross-Over StudiesDogsSportsEchocardiographyHeart Function TestsHorsesProspective StudiesElectrocardiography, AmbulatoryDipyridamoleForced Expiratory VolumeRespiratory Physiological PhenomenaWeight-BearingPhysical Education and TrainingThallium RadioisotopesNitroglycerinPropranololBody WeightRecovery of FunctionHindlimbCitrate (si)-SynthaseTreatment OutcomeVasodilator AgentsChronic DiseaseVentricular Function, LeftLocomotionCoronary AngiographyMetabolic EquivalentTomography, Emission-Computed, Single-PhotonBlood Gas AnalysisBed RestPrognosisMuscle FatiguePeripheral Vascular DiseasesBlood GlucoseMuscle ContractionReproducibility of ResultsReference ValuesSystoleRespiratory MechanicsAgingPostureTidal VolumeResistance Training