Muscular Atrophy, SpinalSpinal Muscular Atrophies of ChildhoodSurvival of Motor Neuron 1 ProteinAtrophySMN Complex ProteinsMuscular AtrophySurvival of Motor Neuron 2 ProteinMusclesMuscular Disorders, AtrophicBulbo-Spinal Atrophy, X-LinkedNeuronal Apoptosis-Inhibitory ProteinMuscle, SkeletalCyclic AMP Response Element-Binding ProteinMuscle ProteinsMotor NeuronsAnterior Horn CellsMuscle Fibers, SkeletalMuscle, SmoothRNA-Binding ProteinsMuscle, Smooth, VascularNerve Tissue ProteinsMuscle DevelopmentMuscle ContractionOptic AtrophyMotor Neuron DiseaseRibonucleoproteins, Small NuclearMuscle DenervationMuscle WeaknessDEAD Box Protein 20Chromosomes, Human, Pair 5ExonsMuscle Fibers, Fast-TwitchDisease Models, AnimalElectromyographyMuscle FatigueMuscle Fibers, Slow-TwitchMultiple System AtrophyCoiled BodiesReceptors, AndrogensnRNP Core ProteinsSpinal CordMitochondria, MuscleMyocytes, Smooth MuscleMice, TransgenicNeuromuscular JunctionOculomotor MusclesPedigreeNeck MusclesPhenotypeMuscle, StriatedMuscular DiseasesNeuromuscular DiseasesBulbar Palsy, ProgressiveMuscle SpindlesMuscle RelaxationRespiratory MusclesContractureCharcot-Marie-Tooth DiseasePapillary MusclesHeterozygote DetectionQuadriceps MuscleNeural ConductionOlivopontocerebellar AtrophiesMutationArthrogryposisAbdominal MusclesGlycine-tRNA LigaseGene DeletionNerve DegenerationMuscle CellsVocal Cord ParalysisSpinal Cord DiseasesCells, CulturedHomozygoteMasseter MuscleGyrate AtrophyRNA, MessengerMasticatory MusclesFacial MusclesRNA SplicingMagnetic Resonance ImagingMuscular DystrophiesTrinucleotide Repeat ExpansionNeuromuscular Junction DiseasesSatellite Cells, Skeletal MuscleIntercostal MusclesTime FactorsMolecular Sequence DataIsometric ContractionGenes, RecessiveHindlimb SuspensionAxonsGene Expression RegulationGenetic LinkageGeographic AtrophyGene DosageSural NerveTrinucleotide RepeatsBase SequencePectoralis Muscles