Abdominal MusclesPsoas MusclesPsoas AbscessMusclesMuscle ContractionMuscle Fibers, SkeletalMuscle, SkeletalMuscle ProteinsRectus AbdominisRabbitsIsometric ContractionRespiratory MusclesElectromyographyMuscle, SmoothDiaphragmSarcomeresMuscle RelaxationMuscle, Smooth, VascularMyofibrilsMuscle DevelopmentMyosinsMuscle FatigueIntercostal MusclesIntercostal NervesMuscle Fibers, Fast-TwitchAbdominal WallMuscle Fibers, Slow-TwitchPressureRespiratory MechanicsAbdomenMagnesium CompoundsTroponin CMuscle DenervationPhotolysisAdenosine TriphosphateBiomechanical PhenomenaParaspinal MusclesPostureRespirationMyocytes, Smooth MuscleMitochondria, MuscleInhalationCalciumNephropidaePositive-Pressure Respiration, IntrinsicNeck MusclesOculomotor MusclesMuscle, StriatedPhosphatesAbdominal CavityMuscle SpindlesAdenosine DiphosphateLordosisBiophysical PhenomenaLumbosacral RegionThoraxMuscle WeaknessPapillary MusclesActinsKineticsTroponinLaryngeal MusclesActomyosinBiophysicsQuadriceps MuscleX-Ray DiffractionTime FactorsMuscle CellsExhalationHypercapniaElectric StimulationRetroperitoneal SpaceMasseter MuscleGlycerolMyosin SubfragmentsFacial MusclesMasticatory MusclesActin CytoskeletonModels, BiologicalSpineCoughMuscular AtrophyPelvisElasticityMovementSatellite Cells, Skeletal MuscleRhodaminesPhysical ExertionAdenosine TriphosphatasesStress, MechanicalPulmonary VentilationPectoralis MusclesOsmolar ConcentrationLung Volume MeasurementsDogsRecruitment, NeurophysiologicalSupine PositionPatient PositioningMuscular DiseasesAstacoidea