Respiratory MusclesDiaphragmBreathing ExercisesWork of BreathingMusclesIntercostal MusclesMuscle WeaknessMaximal Voluntary VentilationMuscle FatigueAbdominal MusclesRespiratory MechanicsInhalationMuscle, SkeletalMuscle StrengthNeuromuscular DiseasesRespiratory Function TestsRespirationMuscle ProteinsMuscle ContractionMuscle, SmoothInspiratory CapacityMuscle Fibers, SkeletalRespiratory ParalysisVital CapacityDyspneaMuscle, Smooth, VascularLung Volume MeasurementsPressureRespiratory InsufficiencyElectromyographyPulmonary VentilationMuscle DevelopmentPhysical EnduranceVentilator WeaningLung Diseases, ObstructiveExercise ToleranceHypercapniaThoraxSpirometryNeck MusclesMaximal Expiratory Flow RatePhrenic NerveTidal VolumeMuscular DiseasesRibsRespiration, ArtificialAir PressureThoracic WallMuscle Fibers, Fast-TwitchMuscle DenervationResidual VolumeRespiratory Physiological PhenomenaOxygen ConsumptionHypoventilationMuscle Fibers, Slow-TwitchTotal Lung CapacityAccessory NerveMuscular AtrophyPulmonary Disease, Chronic ObstructiveQuadriceps MuscleMyocytes, Smooth MuscleAirway ResistanceMitochondria, MuscleExercise TestXiphoid BoneExerciseRespiration DisordersForced Expiratory VolumeRespiratory TherapyCarbon DioxideOculomotor MusclesQuadriplegiaGymnasticsLungMuscle, StriatedPulmonary Gas ExchangeExhalationPlethysmography, ImpedanceRectus AbdominisMuscle SpindlesMuscle RelaxationPhysical ExertionPain, ReferredBlood Gas AnalysisHyperventilationChlorfenvinphosMuscular Dystrophy, DuchennePapillary MusclesSupinationBicyclingTime FactorsInsufflationMuscular DystrophiesLegFunctional Residual CapacityMuscle CellsElectric StimulationPostpoliomyelitis SyndromeCoughMeconium Aspiration Syndrome