Muscle Fibers, Fast-TwitchMusclesMuscle Fibers, Slow-TwitchMuscle Fibers, SkeletalMuscle ContractionMuscle, SkeletalMovementMuscle DenervationMuscle ProteinsSarcoplasmic ReticulumCalcium-Transporting ATPasesRabbitsCalciumMuscle DevelopmentMuscle, SmoothRana temporariaNerve FibersMyofibrilsIsometric ContractionMuscle, Smooth, VascularElectric StimulationNeuromuscular JunctionEye MovementsMuscle FatigueElectromyographyMyosin Heavy ChainsDiaphragmTime FactorsMuscle SpindlesMotor NeuronsOculomotor MusclesMitochondria, MuscleSarcomeresAnuraRana pipiensPsoas MusclesBiomechanical PhenomenaDietary FiberMuscle RelaxationAction PotentialsMuscular AtrophyMuscular DiseasesPapillary MusclesMembrane PotentialsMuscle, StriatedHindlimbMuscle WeaknessNeck MusclesMotor EndplateMyosinsMasseter MuscleThoracicaQuadriceps MuscleRespiratory MusclesMasticatory MusclesMuscular Dystrophy, AnimalMyocytes, Smooth MuscleAbdominal MusclesSatellite Cells, Skeletal MuscleModels, BiologicalMineral FibersFacial MusclesCaffeineCatsHistocytochemistryKineticsIntercostal MusclesSnakesRanidaeMice, Inbred mdxHead MovementsSarcolemmaElectrophysiologyRana esculentaMicroscopy, ElectronRats, WistarMuscle CellsNeural ConductionMovement DisordersTubocurarineActinsPectoralis MusclesCotton FiberPurkinje FibersCells, CulturedTorqueRats, Sprague-DawleyDystrophinTendonsRegenerationPotassiumStress, MechanicalMyocardial ContractionNADH Tetrazolium ReductaseCell MovementReceptors, CholinergicMyoblastsAxonsSkeletal Muscle MyosinsMyocardium