Respiratory MusclesDiaphragmBreathing ExercisesWork of BreathingMusclesIntercostal MusclesMuscle WeaknessMaximal Voluntary VentilationMuscle FatigueAbdominal MusclesRespiratory MechanicsInhalationMuscle, SkeletalMuscle StrengthNeuromuscular DiseasesRespiratory Function TestsRespirationMuscle ContractionMuscle ProteinsMuscle, SmoothInspiratory CapacityMuscle Fibers, SkeletalRespiratory ParalysisVital CapacityDyspneaLung Volume MeasurementsMuscle, Smooth, VascularPressureRespiratory InsufficiencyElectromyographyPulmonary VentilationMuscle DevelopmentPhysical EnduranceLung Diseases, ObstructiveVentilator WeaningExercise ToleranceThoraxHypercapniaSpirometryNeck MusclesMaximal Expiratory Flow RatePhrenic NerveTidal VolumeMuscular DiseasesRespiration, ArtificialAir PressureRibsThoracic WallMuscle Fibers, Fast-TwitchOxygen ConsumptionResidual VolumeMuscle DenervationRespiratory Physiological PhenomenaTotal Lung CapacityHypoventilationMuscle Fibers, Slow-TwitchPulmonary Disease, Chronic ObstructiveMuscular AtrophyAirway ResistanceQuadriceps MuscleExercise TestMyocytes, Smooth MuscleExerciseMitochondria, MuscleXiphoid BoneCarbon DioxideRespiration DisordersForced Expiratory VolumeRespiratory TherapyOculomotor MusclesQuadriplegiaLungTime FactorsPlethysmography, ImpedanceExhalationPulmonary Gas ExchangeGymnasticsMuscle, StriatedPhysical ExertionRectus AbdominisMuscle SpindlesBlood Gas AnalysisMuscle RelaxationHyperventilationPain, ReferredMuscular Dystrophy, DuchennePapillary MusclesChlorfenvinphosBicyclingSupinationLegInsufflationFunctional Residual CapacityMuscular DystrophiesElectric StimulationMuscle CellsCoughOxygenPostpoliomyelitis SyndromePartial Pressure