Muscular Atrophy, SpinalSpinal Muscular Atrophies of ChildhoodSurvival of Motor Neuron 1 ProteinMuscle, SkeletalAtrophySMN Complex ProteinsMuscular AtrophySurvival of Motor Neuron 2 ProteinSpinal CordMusclesMuscle Fibers, SkeletalMuscle ProteinsMuscular Disorders, AtrophicMuscle FatigueMuscle ContractionMuscle DevelopmentMuscle Fibers, Fast-TwitchBulbo-Spinal Atrophy, X-LinkedSpinal Cord InjuriesNeuronal Apoptosis-Inhibitory ProteinMotor NeuronsCyclic AMP Response Element-Binding ProteinAnterior Horn CellsPhosphocreatineMuscle StrengthMuscle, SmoothRNA-Binding ProteinsNerve Tissue ProteinsMuscle, Smooth, VascularSpinal Cord DiseasesOptic AtrophyTime FactorsEnergy MetabolismMotor Neuron DiseaseRibonucleoproteins, Small NuclearMuscle DenervationMuscle WeaknessDEAD Box Protein 20Disease Models, AnimalElectromyographySpinal Nerve RootsExonsChromosomes, Human, Pair 5Injections, SpinalSpinal NervesMuscle Fibers, Slow-TwitchCoiled BodiesMultiple System AtrophyAnesthesia, SpinalReceptors, AndrogensnRNP Core ProteinsSpinal Cord NeoplasmsMice, TransgenicSpinal CanalMitochondria, MuscleSpinal DiseasesMyocytes, Smooth MuscleSpinal Cord CompressionNeuromuscular JunctionSpinal NeoplasmsNeck MusclesPedigreePhenotypeOculomotor MusclesNeuromuscular DiseasesMuscle, StriatedMuscular DiseasesMuscle SpindlesBulbar Palsy, ProgressiveNeural ConductionMagnetic Resonance ImagingSpinal StenosisAxonsRespiratory MusclesSpinal FusionMuscle RelaxationContractureCharcot-Marie-Tooth DiseaseNerve DegenerationPapillary MusclesMutationHeterozygote DetectionQuadriceps MuscleCells, CulturedArthrogryposisOlivopontocerebellar AtrophiesGene DeletionAbdominal MusclesGlycine-tRNA LigaseRats, Sprague-DawleyRNA, MessengerMuscle CellsVocal Cord ParalysisHomozygoteHindlimbMasseter MuscleSpinal InjuriesFacial MusclesGyrate AtrophyRNA Splicing