Spinal Cord InjuriesSpinal CordParaplegiaQuadriplegiaSpinal Cord DiseasesSpinal Cord CompressionNerve RegenerationMusclesRecovery of FunctionSpinal Cord NeoplasmsInjections, SpinalSpinal NervesCervical VertebraeSpinal Nerve RootsMuscle, SkeletalSpinal Cord IschemiaAutonomic DysreflexiaMotor NeuronsThoracic VertebraeRats, Sprague-DawleySpinal Cord RegenerationWounds and InjuriesParalysisSciatic NerveSpinal InjuriesUrinary Bladder, NeurogenicLocomotionWheelchairsAxonsPeripheral NervesElectric Stimulation TherapyContusionsDisease Models, AnimalElectromyographyMuscle, SmoothMuscle ProteinsMuscle SpasticityLaminectomyAnesthesia, SpinalSpinal CanalNerve FibersMuscle ContractionBrain InjuriesTime FactorsElectric StimulationSpinal NeoplasmsPressure UlcerMuscle Fibers, SkeletalMyelitisInjury Severity ScoreSpinal DiseasesNeuralgiaGanglia, SpinalMotor ActivityMuscle, Smooth, VascularHindlimbReflexPeripheral Nerve InjuriesSpinal StenosisLumbosacral RegionSpinal FusionCordotomyTibial NervePainAthletic InjuriesPosterior Horn CellsPyramidal TractsMuscle DevelopmentOptic NervePhrenic NerveAnterior Horn CellsMyelin SheathChondroitin ABC LyaseHyperalgesiaNeuronsSpasmMuscle FatigueNerve CrushImmunohistochemistryReperfusion InjuryRats, WistarNeurons, AfferentAfferent PathwaysPain MeasurementEvoked Potentials, SomatosensoryUrinary CatheterizationPhysical StimulationMuscular Atrophy, SpinalGait Disorders, NeurologicSpineCatsNeuronal PlasticityUrinary BladderMyelographyNeck InjuriesOligodendrogliaNeurogliaNeural ConductionHematoma, Epidural, SpinalMagnetic Resonance Imaging