Spinal Cord InjuriesSpinal CordQuadriplegiaGait Disorders, NeurologicWalkingParaplegiaRecovery of FunctionLocomotionElectromyographyRoboticsGaitDependent AmbulationCervical VertebraeElectric Stimulation TherapyExercise TherapyWeight-BearingBiofeedback, PsychologyPyramidal TractsMuscle, SkeletalPhysical Therapy ModalitiesSpinal Cord DiseasesPostural BalanceMuscle SpasticitySpinal Cord CompressionExercise TestBiomechanical PhenomenaContusionsMotor NeuronsNerve RegenerationWounds and InjuriesAutonomic DysreflexiaLegMuscle StrengthSpinal Cord NeoplasmsBrown-Sequard SyndromeSpinal Cord RegenerationUrinary Bladder, NeurogenicSpinal Cord IschemiaThoracic VertebraeParalysisMuscle ContractionWheelchairsMotor ActivityEvoked Potentials, MotorInjections, SpinalSpinal InjuriesRats, Sprague-DawleyBrain InjuriesDisease Models, AnimalAxonsInjury Severity ScorePressure UlcerMyelitisLaminectomySpinal Nerve RootsAthletic InjuriesSpinal NervesTime FactorsH-ReflexNeuralgiaCordotomyChondroitin ABC LyasePainReperfusion InjuryLumbosacral RegionSpasmReflexUrinary CatheterizationPosterior Horn CellsAnterior Horn CellsNeck InjuriesNeuronsHindlimbGanglia, SpinalSpinal CanalMyelin SheathSpinal NeoplasmsOligodendrogliaNeuronal PlasticityAnesthesia, SpinalEvoked Potentials, SomatosensoryNeuroprotective AgentsElectric StimulationRespiratory ParalysisHyperalgesiaNeurogliaSpinal DiseasesAstrocytesGlial Fibrillary Acidic ProteinUrinary BladderUmbilical CordNeurologic ExaminationMyelographySpinal FusionRehabilitation CentersPain MeasurementSpinal StenosisOssification, HeterotopicImmunohistochemistryGliosis