Respiratory MusclesMuscle StrengthBreathing ExercisesMaximal Voluntary VentilationMuscle WeaknessInspiratory CapacityRespiratory Function TestsInhalationXiphoid BoneVital CapacityDiaphragmMaximal Expiratory Flow RateNeuromuscular DiseasesPain, ReferredLung Volume MeasurementsRespiratory MechanicsRespirationMuscle Strength DynamometerSpirometryPressureMusclesMuscle, SkeletalExercise ToleranceDyspneaWork of BreathingPhysical EnduranceIntercostal MusclesRespiratory InsufficiencyMuscle FatigueForced Expiratory VolumeAbdominal MusclesExercise TestLung Diseases, ObstructiveMuscle ContractionHand StrengthPulmonary Disease, Chronic ObstructivePostoperative PeriodOxygen ConsumptionLungMuscle Fibers, SkeletalMuscle ProteinsIsometric ContractionElectromyographyMuscle, SmoothQuadriceps MuscleRespiratory ParalysisResistance TrainingTime FactorsPulmonary VentilationMuscle, Smooth, VascularMuscle DevelopmentTensile StrengthExerciseVentilator WeaningMuscular DiseasesExercise TherapyNeck MusclesCross-Sectional StudiesKneeHeart FailureTorqueLegMuscular AtrophyHypercapniaPhrenic NerveWeight LiftingThoraxPhysical FitnessRespiratory Physiological PhenomenaRespiration, ArtificialMuscle Fibers, Fast-TwitchMuscular Dystrophy, DuchenneTotal Lung CapacityPostpoliomyelitis SyndromeTidal VolumeMuscle Fibers, Slow-TwitchRibsAir PressureSarcopeniaRespiratory TherapyThoracic WallMuscle DenervationGymnasticsBiomechanical PhenomenaResidual VolumeMuscle, StriatedPhysical ExertionAgingExhalationRange of Motion, ArticularHypoventilationQuadriplegiaKnee JointThighShear StrengthMuscular DystrophiesCarbon DioxideRectus AbdominisOculomotor MusclesMyocytes, Smooth Muscle