Motor NeuronsRecruitment, NeurophysiologicalElectromyographyMuscle ContractionEvoked Potentials, MotorMotor CortexMusclesMuscle, SkeletalIsometric ContractionNeural ConductionAction PotentialsMotor ActivityMuscle FatigueElectric StimulationHandToesCatsMuscle Fibers, SkeletalMolecular Motor ProteinsNeuromuscular JunctionFingersNeuromuscular DiseasesMovementAxonsDifferential ThresholdMuscle DenervationHindlimbUlnar NerveMuscle CrampVolitionWristIntensive Care UnitsTime FactorsArmMedian NervePeroneal NerveMuscle Fibers, Fast-TwitchMotor Skills DisordersElbowTongueReaction TimeElectrophysiologyEvoked PotentialsHypoglossal NerveTendonsTarsus, AnimalParalysisReflexTorqueMasticatory MusclesSnakesMuscle Fibers, Slow-TwitchThumbVibrationNeurons, AfferentTibial NerveEfferent PathwaysReflex, StretchSpinal CordPsychomotor PerformanceMechanoreceptorsBiomechanical PhenomenaRefractory Period, ElectrophysiologicalMuscle SpindlesLegMotor EndplateNerve RegenerationLocomotionTetanyModels, NeurologicalH-ReflexMuscular Atrophy, SpinalIntercostal MusclesRadial NerveFootMovement DisordersMuscle SpasticitySynapsesSpinal Cord InjuriesSynaptic TransmissionTranscranial Magnetic StimulationAdaptation, PhysiologicalDecerebrate StateHand StrengthQuadriceps MuscleParesisAmyotrophic Lateral SclerosisBiofeedback, PsychologyKinesinHospital UnitsProprioceptionCordotomyAfferent PathwaysPosturePhysical StimulationMasseter MuscleMagneticsFemoral NerveFunctional LateralityNeural Pathways