Muscle Fibers, Slow-TwitchMusclesMuscle Fibers, Fast-TwitchMuscle ContractionMuscle Fibers, SkeletalRana temporariaMuscle, SkeletalMurexideMuscle DenervationSnakesColubridaeSarcoplasmic ReticulumMotor NeuronsNeural ConductionElectric StimulationNerve FibersMyofibrilsCatsAnuraArsenazo IIINaphthalenesulfonatesMotor EndplateTime FactorsMuscle ProteinsRana pipiensCalciumCalcium-Transporting ATPasesMembrane PotentialsMuscle, SmoothMuscle DevelopmentDiacetylAction PotentialsIsometric ContractionDietary FiberRabbitsMyocardiumNeuromuscular JunctionDiaphragmPhenolsulfonphthaleinMuscle, Smooth, VascularMyosin Heavy ChainsMineral FibersMuscle FatigueSarcomeresElectrophysiologyElectromyographyMuscle SpindlesMolecular Sequence DataMitochondria, MuscleMuscle RelaxationPapillary MusclesBase SequenceCotton FiberPsoas MusclesOculomotor MusclesMuscular AtrophyPurkinje FibersMuscular DiseasesHindlimbElectric ConductivityKineticsTubocurarineQuadriceps MuscleBiomechanical PhenomenaMuscle WeaknessCaffeineMyosinsMuscle, StriatedNeuromuscular Nondepolarizing AgentsRespiratory MusclesThoracicaStress FibersNeuromuscular Blocking AgentsMasseter MuscleMyocardial ContractionMuscular Dystrophy, AnimalHistocytochemistryRanidaeNerve Fibers, MyelinatedMasticatory MusclesSuccinylcholineTetanyNeck MusclesAbdominal MusclesSatellite Cells, Skeletal MusclePhrenic NerveMyocytes, Smooth MuscleMicroscopy, ElectronRats, WistarSarcolemmaIntercostal MusclesMice, Inbred mdxPancuroniumRana esculentaTorqueMossy Fibers, HippocampalVecuronium BromideAxonsModels, BiologicalRats, Sprague-Dawley