Electric StimulationMusclesElectric Stimulation TherapyMuscle, SkeletalMuscle ContractionMuscle, SmoothMuscle ProteinsMuscle Fibers, SkeletalMuscle, Smooth, VascularMuscle DevelopmentMuscle FatigueCatsElectromyographyMuscle DenervationPhysical StimulationTranscutaneous Electric Nerve StimulationElectrodes, ImplantedMuscle Fibers, Fast-TwitchTime FactorsStimulation, ChemicalMuscle Fibers, Slow-TwitchRats, Sprague-DawleyReflexAction PotentialsDeep Brain StimulationMuscle RelaxationIsometric ContractionEvoked PotentialsMotor NeuronsMuscle SpindlesNeck MusclesQuadriceps MuscleMitochondria, MuscleMyocytes, Smooth MuscleCells, CulturedHindlimbNeurons, AfferentOculomotor MusclesVagus NerveCalciumElectrodesAfferent PathwaysDecerebrate StateMuscle WeaknessTranscranial Magnetic StimulationRats, WistarRabbitsRespiratory MusclesElectrophysiologyPapillary MusclesGuinea PigsSpinal CordAbdominal MusclesMuscle, StriatedNeuronsSynaptic TransmissionFacial MusclesNorepinephrineMuscular AtrophyMicroelectrodesMasticatory MusclesAtropineNeurons, EfferentSympathetic Nervous SystemMuscle CellsMasseter MuscleNeural ConductionDogsNeural InhibitionEvoked Potentials, SomatosensoryIntercostal MusclesEvoked Potentials, MotorGuanethidineDose-Response Relationship, DrugSignal TransductionDiaphragmMovementRats, Inbred StrainsSpinal Cord InjuriesNeuromuscular JunctionMembrane PotentialsMotor CortexBiomechanical PhenomenaAcetylcholineRNA, MessengerEfferent PathwaysPeroneal NerveNeural PathwaysTorqueSatellite Cells, Skeletal MuscleMuscle SpasticityKineticsParasympathetic Nervous SystemReaction TimePharyngeal MusclesMechanoreceptorsMedulla OblongataTibial NerveNerve FibersTetrodotoxin