Respiratory MusclesMuscle StrengthMuscle WeaknessBreathing ExercisesMaximal Voluntary VentilationInspiratory CapacityMuscle Strength DynamometerRespiratory Function TestsInhalationDiaphragmMusclesVital CapacityMuscle, SkeletalXiphoid BoneMaximal Expiratory Flow RateNeuromuscular DiseasesLung Volume MeasurementsPain, ReferredRespiratory MechanicsRespirationSpirometryMuscle ContractionPressureHand StrengthExercise ToleranceMuscle FatiguePhysical EnduranceAbdominal MusclesDyspneaMuscle ProteinsIsometric ContractionMuscle Fibers, SkeletalIntercostal MusclesMuscle, SmoothWork of BreathingExercise TestQuadriceps MuscleRespiratory InsufficiencyForced Expiratory VolumeResistance TrainingMuscle, Smooth, VascularElectromyographyLung Diseases, ObstructiveMuscle DevelopmentTensile StrengthOxygen ConsumptionPulmonary Disease, Chronic ObstructiveKneePostoperative PeriodExercise TherapyTorqueTime FactorsLungNeck MusclesExerciseWeight LiftingMuscular DiseasesMuscle Fibers, Fast-TwitchLegMuscular AtrophyPhysical FitnessMuscle Fibers, Slow-TwitchSarcopeniaPulmonary VentilationMuscle DenervationRespiratory ParalysisBiomechanical PhenomenaMuscle, StriatedRange of Motion, ArticularKnee JointCross-Sectional StudiesThighShear StrengthVentilator WeaningAgingOculomotor MusclesMyocytes, Smooth MuscleMuscular Dystrophy, DuchenneMitochondria, MuscleWalkingPostural BalanceMuscle RelaxationPostpoliomyelitis SyndromeHeart FailureMuscle SpindlesLower ExtremityPhysical Education and TrainingPhrenic NerveRespiratory Physiological PhenomenaPhysical ExertionMuscle Stretching ExercisesHypercapniaMusculoskeletal Physiological PhenomenaGaitPapillary MusclesBody CompositionMuscular DystrophiesMobility LimitationAnalysis of VarianceRespiration, Artificial