Muscular Atrophy, SpinalSpinal Muscular Atrophies of ChildhoodSurvival of Motor Neuron 1 ProteinAtrophySMN Complex ProteinsMuscular AtrophySurvival of Motor Neuron 2 ProteinSpinal CordMusclesMuscular Disorders, AtrophicCyclic AMP Response Element-Binding ProteinBulbo-Spinal Atrophy, X-LinkedNeuronal Apoptosis-Inhibitory ProteinSpinal Cord InjuriesMotor NeuronsMuscle, SkeletalRNA-Binding ProteinsAnterior Horn CellsMuscle ProteinsNerve Tissue ProteinsMuscle Fibers, SkeletalMuscle, SmoothRibonucleoproteins, Small NuclearDEAD Box Protein 20Muscle, Smooth, VascularSpinal Cord DiseasesMuscle DevelopmentMuscle ContractionOptic AtrophyExonsCoiled BodiesMotor Neuron DiseaseMuscle DenervationMuscle WeaknessDisease Models, AnimalsnRNP Core ProteinsElectromyographyChromosomes, Human, Pair 5Spinal Nerve RootsInjections, SpinalMuscle Fibers, Fast-TwitchSpinal NervesMuscle FatigueMuscle Fibers, Slow-TwitchMultiple System AtrophyAnesthesia, SpinalMice, TransgenicReceptors, AndrogenSpinal Cord NeoplasmsSpinal CanalNeuromuscular JunctionMitochondria, MusclePhenotypeSpinal DiseasesMyocytes, Smooth MuscleSpinal Cord CompressionPedigreeMuscle, StriatedSpinal NeoplasmsNeck MusclesOculomotor MusclesNeuromuscular DiseasesAxonsMuscular DiseasesMutationMuscle SpindlesHeterozygote DetectionBulbar Palsy, ProgressiveNeural ConductionRNA SplicingMagnetic Resonance ImagingSpinal StenosisGene DeletionRespiratory MusclesSpinal FusionTime FactorsMuscle RelaxationCells, CulturedContractureNerve DegenerationHomozygoteCharcot-Marie-Tooth DiseaseRNA, MessengerPapillary MusclesMolecular Sequence DataQuadriceps MuscleArthrogryposisGene DosageOlivopontocerebellar AtrophiesAbdominal MusclesGlycine-tRNA LigaseRats, Sprague-DawleyMuscle CellsVocal Cord ParalysisAmyotrophic Lateral SclerosisNeuromuscular Junction DiseasesMotor ActivityHindlimbMasseter MuscleSpinal Injuries