Exercise TestExercise ToleranceExerciseExercise TherapyPhysical ExertionOxygen ConsumptionPhysical EnduranceHeart RateAnaerobic ThresholdPhysical FitnessAsthma, Exercise-InducedBicyclingPulmonary Gas ExchangeElectrocardiographyMuscle, SkeletalAngina PectorisLactic AcidErgometryTime FactorsRestDyspneaSportsRespiratory Function TestsRunningBlood PressureDouble-Blind MethodRespirationCoronary DiseaseHemodynamicsFollow-Up StudiesCardiovascular Physiological PhenomenaPhysical Education and TrainingTreatment OutcomeOxygenProspective StudiesWalkingAnalysis of VarianceCross-Over StudiesMuscle FatigueBreathing ExercisesCarbon DioxideForced Expiratory VolumeHeart FailureMetabolic EquivalentPain MeasurementCardiac OutputAsthenopiaStroke VolumeLegPredictive Value of TestsLactatesHuman EngineeringResistance TrainingGlycogen Storage Disease Type VSingle-Blind MethodPainPulmonary VentilationAdaptation, PhysiologicalAthletesMuscle Stretching ExercisesMuscle StrengthHeartAdrenergic beta-AntagonistsQuestionnairesMyocardial IschemiaRegional Blood FlowMicrovascular AnginaQuality of LifeHyperventilationChronic DiseaseSpirometryPulmonary Disease, Chronic ObstructiveMaximal Voluntary VentilationGlycogenSeverity of Illness IndexRespiratory MechanicsRespiratory Physiological PhenomenaEnergy MetabolismElectrocardiography, AmbulatoryCoronary AngiographyPrognosisReference ValuesRisk FactorsPostureFatigueReproducibility of ResultsEchocardiographyLung Diseases, ObstructiveQuadriceps MuscleWheelchairsChest PainHorsesHypokalemic Periodic ParalysisEchocardiography, StressRespiratory MusclesComputer TerminalsVentricular Function, LeftMuscle ContractionBlood Gas AnalysisPhysical Conditioning, Animal