Vital CapacityForced Expiratory VolumeRespiratory Function TestsSpirometryForced Expiratory Flow RatesMaximal Midexpiratory Flow RateTotal Lung CapacityLungResidual VolumePulmonary Diffusing CapacityLung Volume MeasurementsMicroscopy, Atomic ForceMaximal Expiratory Flow RateLung Diseases, ObstructivePulmonary VentilationInspiratory CapacityRespiratory MusclesFunctional Residual CapacityMaximal Expiratory Flow-Volume CurvesRespiration DisordersLung DiseasesPulmonary Disease, Chronic ObstructivePeak Expiratory Flow RateRespiratory MechanicsAirway ObstructionAsthmaInhalationBronchodilator AgentsExpiratory Reserve VolumeMaximal Voluntary VentilationBite ForceDyspneaRespirationMethacholine ChloridePulmonary EmphysemaAirway ResistanceIdiopathic Pulmonary FibrosisTime FactorsSmokingBronchoconstrictor AgentsRespiratory ParalysisBiomechanical PhenomenaBronchial Provocation TestsBronchitisExercise ToleranceAdministration, InhalationDustTidal VolumePulmonary FibrosisNeuromuscular DiseasesLung Diseases, InterstitialScoliosisAlbuterolPlethysmography, Whole BodyRespiratory Physiological PhenomenaPneumoconiosisRespiratory TherapyScopolamine DerivativesOccupational ExposurePulmonary Gas ExchangeExercise TestRespiratory InsufficiencyThoraxRespiratory Tract DiseasesCystic FibrosisHeliumOccupational DiseasesDivingMuscle ContractionScleroderma, SystemicCoughBreathing ExercisesCross-Sectional StudiesQuadriplegiaIpratropiumBronchiectasisFenoterolLung ComplianceSeverity of Illness IndexReference ValuesThoracoplastyPulmonary AtelectasisDouble-Blind MethodOxygenBronchospirometryProspective StudiesDiaphragmAnalysis of VarianceMuscle, SkeletalPressureAerosolsFollow-Up StudiesMetallurgyPlethysmographyBronchial HyperreactivityPostoperative PeriodTreatment OutcomeRespiratory SoundsBronchoconstrictionCarbon Monoxide