SarcolemmaMuscle Fibers, SkeletalMusclesMuscle Fibers, Fast-TwitchMuscle Fibers, Slow-TwitchMuscle, SkeletalMuscle ContractionMuscle ProteinsMuscle DevelopmentMuscle, SmoothDystrophinMuscle DenervationNerve FibersMyofibrilsMuscular Dystrophy, AnimalMuscle, Smooth, VascularRana temporariaMuscle FatigueMice, Inbred mdxMitochondria, MuscleCalciumIsometric ContractionNeuromuscular JunctionMyosin Heavy ChainsSarcomeresMuscular DiseasesPsoas MusclesMyocardiumDietary FiberMuscle SpindlesUtrophinOculomotor MusclesRabbitsMuscular DystrophiesRana pipiensMuscular AtrophyMuscle RelaxationSarcoplasmic ReticulumMuscle, StriatedAnuraElectric StimulationDiaphragmSatellite Cells, Skeletal MuscleThoracicaMuscle WeaknessMembrane PotentialsDystrophin-Associated ProteinsMicroscopy, ElectronTime FactorsPapillary MusclesDystroglycansNeck MusclesMyocytes, Smooth MuscleCaveolin 3Masseter MuscleMotor NeuronsMuscular Dystrophy, DuchenneElectromyographyMineral FibersQuadriceps MuscleHistocytochemistrySarcoglycansHindlimbRespiratory MusclesAction PotentialsMasticatory MusclesAbdominal MusclesMyosinsCaffeineIntercostal MusclesMuscle CellsFacial MusclesRats, WistarMotor EndplateBiomechanical PhenomenaKineticsImmunohistochemistryCotton FiberCells, CulturedPectoralis MusclesMyoblastsModels, BiologicalActinsMyositisSodiumRegenerationNADH Tetrazolium ReductaseReceptors, CholinergicDesminRats, Sprague-DawleyDogsPotassiumAdenosine TriphosphateSodium-Potassium-Exchanging ATPaseRana esculentaSkeletal Muscle MyosinsRanidaeElectrophysiologyProtein IsoformsMice, Inbred C57BL