Exercise ToleranceExercise TestExercise TherapyExercisePhysical ExertionGlucose IntoleranceOxygen ConsumptionLactose IntolerancePhysical EnduranceDrug ToleranceDyspneaMuscle, SkeletalHeart RateBreathing ExercisesImmune ToleranceFructose IntoleranceGlucose Tolerance TestPulmonary Gas ExchangePulmonary Disease, Chronic ObstructiveHeart FailureOrthostatic IntoleranceRespiratory Function TestsAnaerobic ThresholdTime FactorsLung Diseases, ObstructiveRestBlood PressureDouble-Blind MethodCross-Over StudiesAngina PectorisTreatment OutcomeHemodynamicsForced Expiratory VolumeXamoterolRespiratory MusclesLactic AcidBlood GlucoseBicyclingCardiac OutputWalkingQuality of LifePhysical FitnessRespirationMuscle StrengthStroke VolumeAdaptation, PhysiologicalChronic DiseaseLegMuscle FatigueOxygenResistance TrainingRunningAnalysis of VarianceElectrocardiographyMuscle Stretching ExercisesHeart Function TestsCounterpulsationEnergy MetabolismInspiratory CapacityVital CapacityRegional Blood FlowProspective StudiesFollow-Up StudiesSpirometrySingle-Blind MethodTransplantation ToleranceGlycogen Storage Disease Type VInsulinInsulin ResistanceVentricular Function, LeftOxygen Inhalation TherapyIsosorbide DinitratePropanolaminesEchocardiographyAdrenergic beta-AntagonistsMetoprololGlycogenPhysical Education and TrainingHeartLungNeurocirculatory AstheniaFatigueEbstein AnomalySeverity of Illness IndexVentricular Dysfunction, LeftCardiac Output, LowDiastoleRespiratory MechanicsCoronary DiseaseBody WeightGlucosePulmonary VentilationCarbon DioxideObesityLactose Tolerance TestAsthma, Exercise-InducedExercise Movement TechniquesBronchitisAdministration, OralPhysical Conditioning, Animal