Abdominal MusclesMusclesBone and BonesMuscle, SkeletalRectus AbdominisMuscle ContractionMuscle ProteinsRespiratory MusclesElectromyographyMuscle, SmoothDiaphragmMuscle Fibers, SkeletalMuscle, Smooth, VascularMuscle DevelopmentMuscle FatigueBone RemodelingIntercostal MusclesIntercostal NervesAbdominal WallPressureRespiratory MechanicsAbdomenMuscle Fibers, Fast-TwitchMuscle DenervationMuscle RelaxationBone DensityMuscle Fibers, Slow-TwitchPostureRespirationMyocytes, Smooth MuscleMitochondria, MuscleInhalationNephropidaePositive-Pressure Respiration, IntrinsicIsometric ContractionNeck MusclesOculomotor MusclesBone ResorptionMuscle, StriatedAbdominal CavityMuscle SpindlesLordosisBone MarrowThoraxMuscle WeaknessPapillary MusclesBiomechanical PhenomenaLaryngeal MusclesBone DevelopmentBone Marrow CellsQuadriceps MuscleBone NeoplasmsLumbosacral RegionMuscle CellsExhalationHypercapniaElectric StimulationMasseter MuscleMasticatory MusclesBone DiseasesFacial MusclesPelvisCoughMuscular AtrophyTime FactorsSpineSatellite Cells, Skeletal MusclePhysical ExertionDogsPulmonary VentilationMovementPectoralis MusclesLung Volume MeasurementsRecruitment, NeurophysiologicalBone RegenerationSupine PositionMuscular DiseasesRats, Sprague-DawleyPatient PositioningAstacoideaLow Back PainCells, CulturedExercisePhrenic NerveStomachBone MatrixSurgical Flaps