Inspiratory CapacityExercise TestTotal Lung CapacityExercise ToleranceLung Volume MeasurementsFunctional Residual CapacityResidual VolumeExerciseExercise TherapyPulmonary Disease, Chronic ObstructiveRespiratory MechanicsPositive-Pressure Respiration, IntrinsicDyspneaWork of BreathingPlethysmography, Whole BodyRespiratory MusclesExpiratory Reserve VolumePulmonary EmphysemaForced Expiratory VolumeLung Diseases, ObstructiveLungScopolamine DerivativesSpirometryLung ComplianceInhalationRespiratory Function TestsPhysical ExertionDiaphragmBronchospirometryAirway ResistancePulmonary VentilationBronchodilator AgentsThoracic WallPlethysmographyExhalationPhysical EndurancePulmonary Gas ExchangeVital CapacityTidal VolumeHyperventilationPositive-Pressure RespirationOxygen ConsumptionHeliumAirway ObstructionEmphysemaRespiratory TherapyVentilators, MechanicalBreathing ExercisesThoraxRespirationPressureBronchoconstrictionAlbuterolMuscle, SkeletalRespiration, ArtificialPulmonary Diffusing CapacityHeart RateOxygenRespiratory InsufficiencyForced Expiratory Flow RatesBlood Gas AnalysisPneumonectomyChloraloseCross-Over StudiesBicyclingTime FactorsRestAsthmaPhysical FitnessSeverity of Illness IndexResistance TrainingCarbon DioxideTreatment OutcomeMuscle ContractionRunningAnaerobic ThresholdMuscle Stretching ExercisesIndansLactic AcidPartial PressureIntubation, IntratrachealDouble-Blind MethodCystic FibrosisLung DiseasesAnalysis of VarianceHypercapniaEthanolaminesMethacholine ChlorideAdministration, InhalationTomography, X-Ray ComputedBlood PressureStatistics, NonparametricPhysical Education and TrainingAbdomenLegProspective StudiesAsthma, Exercise-InducedExercise Movement TechniquesGlycogenRegional Blood Flow