Exercise ToleranceExercise TestExercise TherapyExercisePhysical ExertionOxygen ConsumptionPhysical EnduranceDrug ToleranceDyspneaMuscle, SkeletalHeart RateBreathing ExercisesImmune TolerancePulmonary Gas ExchangePulmonary Disease, Chronic ObstructiveHeart FailureRespiratory Function TestsAnaerobic ThresholdLung Diseases, ObstructiveRestTime FactorsAngina PectorisCross-Over StudiesDouble-Blind MethodXamoterolBlood PressureForced Expiratory VolumeBicyclingLactic AcidRespiratory MusclesHemodynamicsGlucose Tolerance TestWalkingTreatment OutcomeQuality of LifeCardiac OutputRespirationPhysical FitnessMuscle StrengthAdaptation, PhysiologicalStroke VolumeResistance TrainingMuscle FatigueLegChronic DiseaseRunningOxygenMuscle Stretching ExercisesHeart Function TestsElectrocardiographyCounterpulsationInspiratory CapacityVital CapacityAnalysis of VarianceSpirometryEnergy MetabolismRegional Blood FlowTransplantation ToleranceProspective StudiesOxygen Inhalation TherapyIsosorbide DinitrateFollow-Up StudiesPropanolaminesSingle-Blind MethodBlood GlucoseMetoprololVentricular Function, LeftNeurocirculatory AstheniaLungEchocardiographyAdrenergic beta-AntagonistsEbstein AnomalyGlycogen Storage Disease Type VHeartPhysical Education and TrainingFatigueVentricular Dysfunction, LeftPulmonary VentilationCardiac Output, LowRespiratory MechanicsDiastoleCoronary DiseaseGlycogenAsthma, Exercise-InducedCarbon DioxideSeverity of Illness IndexExercise Movement TechniquesBronchitisArmWeight LiftingBronchodilator AgentsHypertension, PulmonaryRecovery of FunctionNitroglycerinHand StrengthEchocardiography, DopplerPhysical Conditioning, AnimalVasodilator AgentsLung Volume MeasurementsPropranolol