Abdominal MusclesMusclesMuscle, SkeletalRectus AbdominisMuscle ContractionMuscle ProteinsRespiratory MusclesMuscle, SmoothElectromyographyDiaphragmMuscle Fibers, SkeletalMuscle, Smooth, VascularMuscle DevelopmentMuscle FatigueIntercostal MusclesIntercostal NervesAbdominal WallPressureRespiratory MechanicsAbdomenMuscle Fibers, Fast-TwitchMuscle DenervationMuscle RelaxationMuscle Fibers, Slow-TwitchRespirationPostureMyocytes, Smooth MuscleMitochondria, MuscleInhalationNephropidaeIsometric ContractionPositive-Pressure Respiration, IntrinsicNeck MusclesOculomotor MusclesMuscle, StriatedMuscle SpindlesAbdominal CavityLordosisThoraxPapillary MusclesMuscle WeaknessLaryngeal MusclesQuadriceps MuscleMuscle CellsBiomechanical PhenomenaLumbosacral RegionElectric StimulationExhalationHypercapniaMasseter MuscleFacial MusclesMasticatory MusclesCoughMuscular AtrophyPelvisMammalsTime FactorsDogsSatellite Cells, Skeletal MusclePhysical ExertionPulmonary VentilationMovementPectoralis MusclesMolecular Sequence DataLung Volume MeasurementsRecruitment, NeurophysiologicalSupine PositionSpineMuscular DiseasesRats, Sprague-DawleyPatient PositioningAstacoideaCells, CulturedLow Back PainRabbitsPhrenic NerveStomachExercisePsoas MusclesSurgical Flaps