Physical ExertionDyspneaExerciseExercise TestExercise TherapyExercise ToleranceOxygen ConsumptionPhysical EndurancePulmonary Disease, Chronic ObstructiveMuscle, SkeletalRespiratory Function TestsHeart RateBreathing ExercisesBicyclingForced Expiratory VolumeRestPulmonary Gas ExchangePhysical FitnessResistance TrainingTime FactorsRunningDyspnea, ParoxysmalSpirometryAnaerobic ThresholdMuscle Stretching ExercisesTreatment OutcomeLactic AcidVital CapacityRespiratory MusclesLung Diseases, ObstructiveQuality of LifeHeart FailureWalkingRespirationSeverity of Illness IndexBlood PressureRespiratory MechanicsAsthma, Exercise-InducedInspiratory CapacityMuscle StrengthOxygenHemodynamicsLegMuscle FatigueLungPhysical Education and TrainingElectrocardiographyAnalysis of VarianceExercise Movement TechniquesCardiac OutputGlycogenRegional Blood FlowFatigueAirway ObstructionProspective StudiesDouble-Blind MethodWeight LiftingAdaptation, PhysiologicalCoughEnergy MetabolismLung Volume MeasurementsCross-Over StudiesQuestionnairesStroke VolumeFollow-Up StudiesBronchodilator AgentsOxygen Inhalation TherapyBlood Gas AnalysisCarbon DioxideChronic DiseaseEchocardiographySportsRadiography, ThoracicWork of BreathingMotor ActivityScopolamine DerivativesErgometryMuscle ContractionMaximal Voluntary VentilationInhalationPulmonary Diffusing CapacityCardiovascular Physiological PhenomenaSingle-Blind MethodBlood GlucoseQuadriceps MuscleLung DiseasesAsthmaLactatesLung Diseases, InterstitialHeartActivities of Daily LivingTomography, X-Ray ComputedFatal OutcomeHypertension, PulmonaryNatriuretic Peptide, BrainSwimmingBody WeightSweatingPredictive Value of TestsHyperventilation