MusclesMuscle, SmoothMuscle ProteinsMuscle, SkeletalMuscle Fibers, SkeletalMuscle, Smooth, VascularMyocytes, Smooth MuscleMuscle DevelopmentMuscle ContractionMuscle CellsMuscle FatigueMuscle Fibers, Fast-TwitchMuscle DenervationMuscle Fibers, Slow-TwitchMitochondria, MuscleCells, CulturedNeck MusclesOculomotor MusclesMuscle RelaxationMuscle, StriatedMuscle SpindlesRespiratory MusclesPapillary MusclesMuscle WeaknessAbdominal MusclesQuadriceps MuscleAortaMasseter MuscleFacial MusclesMasticatory MusclesIntercostal MusclesMuscular AtrophyIsometric ContractionElectromyographyCalciumSatellite Cells, Skeletal MuscleRabbitsPectoralis MusclesRNA, MessengerMuscular DiseasesRats, Sprague-DawleyTime FactorsMyofibrilsMyosin Heavy ChainsPsoas MusclesElectric StimulationHindlimbActinsMyoblastsSignal TransductionTemporal MuscleRats, WistarNeuromuscular JunctionGene Expression RegulationBiomechanical PhenomenaPharyngeal MusclesDiaphragmCell DivisionAorta, ThoracicPlatelet-Derived Growth FactorMembrane PotentialsGlycogenCell DifferentiationMotor NeuronsImmunohistochemistryHypertrophyMyoD ProteinMuscular Dystrophy, AnimalMyoblasts, SkeletalTracheaPhosphorylationMyocardiumDose-Response Relationship, DrugArteriesGuinea PigsKineticsRegenerationMice, Inbred C57BLDesminMolecular Sequence DataMuscle CrampGene ExpressionMice, Inbred mdxSarcomeresEnzyme InhibitorsBlotting, WesternProto-Oncogene Proteins c-sisInsulinMyostatinCell LineTunica IntimaDystrophinModels, BiologicalReceptors, CholinergicMicroscopy, ElectronMice, KnockoutStress, MechanicalMyogeninCell MovementPhysical Exertion