Heart SeptumHeart RateExercise TestPhysical ExertionPropanolaminesBetaxololHeartExerciseXamoterolAtenololAcebutololPropranololOxprenololAdrenergic beta-AntagonistsExercise TherapyMetoprololSeptum of BrainExercise ToleranceOxygen ConsumptionVentricular SeptumSeptum PellucidumPindololAtrial SeptumNasal SeptumHemodynamicsBlood PressureHeart FailureDouble-Blind MethodHeart DiseasesPhysical EnduranceHeart Defects, CongenitalMuscle, SkeletalHeart TransplantationFetal HeartTime FactorsHeart AtriaRestHeart ValvesBicyclingPhysical FitnessMyocardiumResistance TrainingRunningAnaerobic ThresholdEchocardiographyHeart BlockLactic AcidPulmonary Gas ExchangeMuscle Stretching ExercisesHeart Function TestsStroke VolumeMyocardial ContractionCoronary DiseaseVentricular Function, LeftTreatment OutcomeBreathing ExercisesRegional Blood FlowEnergy MetabolismPhysical Education and TrainingHeart Arrest, InducedFollow-Up StudiesLegGlycogenRespirationCardiac Output, LowAdaptation, PhysiologicalHeart Septal DefectsOxygenProspective StudiesVentricular Dysfunction, LeftCardiovascular Physiological PhenomenaHeart Septal Defects, VentricularAsthma, Exercise-InducedDogsChronic DiseaseRisk FactorsElectrocardiographyMyocardial InfarctionExercise Movement TechniquesMyocytes, CardiacRats, Sprague-DawleyMuscle StrengthMuscle FatigueMyocardial IschemiaWeight LiftingCardiac OutputDyspneaBody WeightCardiomegalyRats, WistarSportsCardiomyopathy, DilatedWalkingCardiomyopathiesBlood GlucoseHeart VentriclesMuscle ContractionAnalysis of VarianceAgingReference Values