Muscle Fibers, Fast-TwitchMusclesMuscle Fibers, Slow-TwitchMuscle Fibers, SkeletalMuscle ContractionMuscle, SkeletalMuscle DenervationMuscle ProteinsSarcoplasmic ReticulumCalcium-Transporting ATPasesRabbitsCalciumMuscle DevelopmentMuscle, SmoothRana temporariaNerve FibersMyofibrilsIsometric ContractionMuscle, Smooth, VascularElectric StimulationNeuromuscular JunctionMyosin Heavy ChainsProtein IsoformsMuscle FatigueDiaphragmSarcomeresMitochondria, MuscleMuscle SpindlesPsoas MusclesAnuraRana pipiensMotor NeuronsOculomotor MusclesTime FactorsDietary FiberMuscle RelaxationElectromyographyMuscular AtrophyMuscular DiseasesMembrane PotentialsPapillary MusclesMuscle, StriatedAction PotentialsMuscle WeaknessHindlimbMotor EndplateMyosinsQuadriceps MuscleThoracicaMasseter MuscleRespiratory MusclesMyocytes, Smooth MuscleNeck MusclesMuscular Dystrophy, AnimalBiomechanical PhenomenaSatellite Cells, Skeletal MuscleMasticatory MusclesAbdominal MusclesMineral FibersCaffeineKineticsHistocytochemistryIntercostal MusclesSnakesMice, Inbred mdxRats, WistarSarcolemmaMuscle CellsRanidaeMolecular Sequence DataCells, CulturedRana esculentaCatsMicroscopy, ElectronFacial MusclesNeural ConductionTubocurarineRNA, MessengerModels, BiologicalRats, Sprague-DawleyMyocardiumPectoralis MusclesCotton FiberElectrophysiologyIsoenzymesPurkinje FibersDystrophinSkeletal Muscle MyosinsActinsMyocardial ContractionRegenerationImmunohistochemistryNADH Tetrazolium ReductaseMyoblastsAmino Acid SequenceReceptors, CholinergicTendonsPotassiumGlycogenNeuromuscular Blocking Agents