Abdominal MusclesMusclesMuscle, SkeletalRectus AbdominisMuscle ContractionMuscle ProteinsRespiratory MusclesElectromyographyMuscle, SmoothDiaphragmMuscle Fibers, SkeletalMuscle, Smooth, VascularCell NucleusMuscle DevelopmentMuscle FatigueIntercostal MusclesIntercostal NervesAbdominal WallRespiratory MechanicsPressureAbdomenMuscle Fibers, Fast-TwitchMuscle DenervationMuscle RelaxationMuscle Fibers, Slow-TwitchRespirationPostureMyocytes, Smooth MuscleMitochondria, MuscleInhalationNephropidaePositive-Pressure Respiration, IntrinsicIsometric ContractionNeck MusclesOculomotor MusclesMuscle, StriatedMuscle SpindlesAbdominal CavityLordosisThoraxMuscle WeaknessPapillary MusclesElectric StimulationLaryngeal MusclesLumbosacral RegionQuadriceps MuscleMuscle CellsBiomechanical PhenomenaExhalationHypercapniaMasseter MuscleFacial MusclesMasticatory MusclesRats, Sprague-DawleyCoughTime FactorsMuscular AtrophyPelvisSatellite Cells, Skeletal MusclePhysical ExertionPulmonary VentilationDogsPectoralis MusclesMovementNucleus AccumbensLung Volume MeasurementsRecruitment, NeurophysiologicalSupine PositionMuscular DiseasesPhrenic NerveSpinePatient PositioningAstacoideaLow Back PainStomachExerciseCells, CulturedSurgical Flaps