Muscle ContractionMuscle Fibers, Slow-TwitchMusclesMuscle Fibers, SkeletalMuscle Fibers, Fast-TwitchMuscle, SkeletalMuscle DenervationIsometric ContractionMuscle, SmoothElectric StimulationMotor NeuronsMuscle ProteinsNeural ConductionSarcoplasmic ReticulumMuscle DevelopmentMuscle, Smooth, VascularCatsRana temporariaMyofibrilsMuscle FatigueNerve FibersRabbitsCalciumTime FactorsMyocardial ContractionNeuromuscular JunctionMuscle RelaxationElectromyographyDiaphragmMyocardiumCalcium-Transporting ATPasesUterine ContractionSarcomeresMyosin Heavy ChainsMuscle SpindlesMitochondria, MuscleAnuraPsoas MusclesRana pipiensPapillary MusclesOculomotor MusclesDietary FiberAction PotentialsMuscular AtrophyMembrane PotentialsIsotonic ContractionMuscular DiseasesMyosinsHindlimbMuscle, StriatedBiomechanical PhenomenaCaffeineQuadriceps MuscleMuscle WeaknessMyocytes, Smooth MuscleGuinea PigsMotor EndplateRats, WistarThoracicaRespiratory MusclesNeck MusclesMasseter MuscleMuscular Dystrophy, AnimalMolecular Sequence DataMasticatory MusclesAbdominal MusclesSatellite Cells, Skeletal MuscleIntercostal MusclesRats, Sprague-DawleySarcolemmaMineral FibersBase SequenceTorqueSnakesDose-Response Relationship, DrugHistocytochemistryMice, Inbred mdxMuscle CellsAcetylcholineRanidaePotassiumTubocurarineFacial MusclesRana esculentaElectrophysiologyActinsModels, BiologicalMicroscopy, ElectronKineticsCells, CulturedAdenosine TriphosphateStress, MechanicalVasoconstrictionPurkinje FibersTendonsPotassium ChloridePectoralis MusclesCotton FiberDogsDystrophin