Muscle Fibers, Fast-TwitchMusclesMuscle Fibers, Slow-TwitchMuscle Fibers, SkeletalMuscle ContractionMuscle, SkeletalMuscle DenervationMuscle ProteinsSarcoplasmic ReticulumCalcium-Transporting ATPasesRabbitsMuscle DevelopmentMuscle, SmoothCalciumRana temporariaNerve FibersMyofibrilsIsometric ContractionMuscle, Smooth, VascularElectric StimulationNeuromuscular JunctionMuscle FatigueMyosin Heavy ChainsDiaphragmMitochondria, MuscleSarcomeresMuscle SpindlesPsoas MusclesAnuraRana pipiensMotor NeuronsDietary FiberOculomotor MusclesMuscle RelaxationElectromyographyTime FactorsMuscular AtrophyMuscular DiseasesPapillary MusclesMembrane PotentialsAction PotentialsMuscle, StriatedMuscle WeaknessMotor EndplateHindlimbThoracicaQuadriceps MuscleRespiratory MusclesMasseter MuscleNeck MusclesMuscular Dystrophy, AnimalMyocytes, Smooth MuscleMyosinsBiomechanical PhenomenaSatellite Cells, Skeletal MuscleMasticatory MusclesAbdominal MusclesMineral FibersCaffeineIntercostal MusclesSnakesHistocytochemistryMice, Inbred mdxSarcolemmaRanidaeMuscle CellsRana esculentaCatsFacial MusclesKineticsNeural ConductionRats, WistarTubocurarineMicroscopy, ElectronCotton FiberPectoralis MusclesPurkinje FibersElectrophysiologyModels, BiologicalDystrophinRegenerationNADH Tetrazolium ReductaseMyocardial ContractionCells, CulturedReceptors, CholinergicMyoblastsRats, Sprague-DawleySkeletal Muscle MyosinsTendonsNeuromuscular Blocking AgentsMyocardiumActinsTetanyGlycogenPotassiumStress, MechanicalIsotonic ContractionNeuromuscular Nondepolarizing AgentsAxonsCrustacea