Exercise ToleranceExercise TestExercise TherapyExercisePhysical ExertionOxygen ConsumptionPhysical EnduranceDrug ToleranceDyspneaMuscle, SkeletalHeart RateBreathing ExercisesImmune TolerancePulmonary Gas ExchangePulmonary Disease, Chronic ObstructiveTime FactorsHeart FailureRespiratory Function TestsAnaerobic ThresholdLung Diseases, ObstructiveRestAngina PectorisTreatment OutcomeWalkingDouble-Blind MethodQuality of LifeCross-Over StudiesXamoterolBlood PressureForced Expiratory VolumeBicyclingLactic AcidRespiratory MusclesHemodynamicsGlucose Tolerance TestPhysical FitnessMuscle StrengthCardiac OutputRespirationAdaptation, PhysiologicalChronic DiseaseStroke VolumeLegResistance TrainingMuscle FatigueOxygenRunningAnalysis of VarianceMuscle Stretching ExercisesHeart Function TestsElectrocardiographyCounterpulsationInspiratory CapacityVital CapacityProspective StudiesActivities of Daily LivingSingle-Blind MethodFollow-Up StudiesSpirometryEnergy MetabolismRegional Blood FlowBlood GlucoseTransplantation ToleranceRecovery of FunctionOxygen Inhalation TherapyIsosorbide DinitratePropanolaminesMetoprololLungVentricular Function, LeftNeurocirculatory AstheniaEchocardiographySeverity of Illness IndexAdrenergic beta-AntagonistsEbstein AnomalyGlycogen Storage Disease Type VHeartPhysical Education and TrainingFatigueVentricular Dysfunction, LeftPulmonary VentilationArmCardiac Output, LowRespiratory MechanicsDiastoleCoronary DiseaseGlycogenAsthma, Exercise-InducedCarbon DioxideExercise Movement TechniquesMotor ActivityHand StrengthBronchitisQuestionnairesWeight LiftingBronchodilator AgentsHypertension, PulmonaryNitroglycerinEchocardiography, DopplerPhysical Conditioning, Animal