Exercise ToleranceExercise TestExercise TherapyExercisePhysical ExertionDrug ToleranceOxygen ConsumptionDimethylhydrazinesPhysical EnduranceImmune ToleranceBreathing ExercisesHeart RatePulmonary Disease, Chronic ObstructiveMuscle, SkeletalHeart FailureRespiratory Function TestsLung Diseases, ObstructiveDouble-Blind MethodTime FactorsPulmonary Gas ExchangeTreatment OutcomeAngina PectorisXamoterolGlucose Tolerance TestCross-Over StudiesForced Expiratory VolumeQuality of LifeRespiratory MusclesAnaerobic ThresholdBlood PressureHemodynamicsProspective StudiesCounterpulsationRestChronic DiseaseFollow-Up StudiesWalkingRespirationCardiac OutputStroke VolumeInspiratory CapacityMuscle StrengthHTLV-I AntigensVital CapacityTransplantation ToleranceAnalysis of VarianceDroughtsOxygenLactic AcidAdaptation, PhysiologicalSpirometryIsosorbide DinitrateOxygen Inhalation TherapyMuscle FatiguePropanolaminesNeurocirculatory AstheniaLegPulmonary VentilationEbstein AnomalyMetoprololSingle-Blind MethodSeverity of Illness IndexLungVentricular Function, LeftEchocardiographyBicyclingBronchitisPhysical FitnessVentricular Dysfunction, LeftHeart NeoplasmsBlood GlucoseDiastoleBronchodilator AgentsAdrenergic beta-AntagonistsRegional Blood FlowCardiac Output, LowPhysical Conditioning, AnimalEnergy MetabolismAdministration, OralFatigueCetirizineHost-Pathogen InteractionsResistance TrainingQuestionnairesHypertension, PulmonaryVasodilator AgentsIpratropiumRunningNitroglycerinRespiratory MechanicsEchocardiography, DopplerMuscle Stretching ExercisesClinical Trials as TopicBisoprololRecovery of FunctionRisk FactorsArmNafronylLung Volume MeasurementsCardiovascular Agents