Muscle Fibers, Fast-TwitchMusclesMuscle Fibers, Slow-TwitchMuscle Fibers, SkeletalMuscle ContractionMuscle, SkeletalMuscle DenervationMuscle ProteinsSarcoplasmic ReticulumCalcium-Transporting ATPasesRabbitsCalciumMuscle DevelopmentMuscle, SmoothMuscle StrengthIsometric ContractionRana temporariaNerve FibersMyofibrilsMuscle, Smooth, VascularElectric StimulationNeuromuscular JunctionMuscle FatigueTensile StrengthDiaphragmMyosin Heavy ChainsMitochondria, MuscleSarcomeresTime FactorsMuscle SpindlesPsoas MusclesMotor NeuronsAnuraRana pipiensElectromyographyDietary FiberMuscle RelaxationOculomotor MusclesMuscle WeaknessMuscular AtrophyMuscular DiseasesAction PotentialsQuadriceps MuscleMembrane PotentialsPapillary MusclesBiomechanical PhenomenaRespiratory MusclesMuscle, StriatedMotor EndplateHindlimbThoracicaShear StrengthNeck MusclesHand StrengthMyosinsMasseter MuscleMuscular Dystrophy, AnimalMyocytes, Smooth MuscleAbdominal MusclesSatellite Cells, Skeletal MuscleMasticatory MusclesMineral FibersCaffeineKineticsSnakesMice, Inbred mdxStress, MechanicalIntercostal MusclesHistocytochemistryRanidaeSarcolemmaCatsMuscle CellsNeural ConductionRats, WistarRana esculentaModels, BiologicalMicroscopy, ElectronMuscle Strength DynamometerFacial MusclesTubocurarineElectrophysiologyCotton FiberTorquePectoralis MusclesOsmolar ConcentrationPurkinje FibersTendonsDystrophinRats, Sprague-DawleyRegenerationCells, CulturedCompressive StrengthAgingNADH Tetrazolium ReductaseActinsMyocardial ContractionReceptors, CholinergicMyoblastsSkeletal Muscle Myosins