Muscle, SkeletalMuscle DevelopmentMusclesMuscle Fibers, SkeletalMuscle ProteinsMuscle, SmoothMuscle ContractionMuscle, Smooth, VascularMuscle Fibers, Fast-TwitchMuscle Fibers, Slow-TwitchMuscle DenervationMitochondria, MuscleMyoblastsMyoD ProteinMyoblasts, SkeletalMuscle FatigueSatellite Cells, Skeletal MuscleMuscle, StriatedMuscle CellsMyogenic Regulatory FactorsMuscular AtrophyMuscular DiseasesMyogeninGene Expression Regulation, DevelopmentalMyofibrilsMyocytes, Smooth MuscleMyogenic Regulatory Factor 5MyostatinMyosin Heavy ChainsOculomotor MusclesNeck MusclesMuscle WeaknessMuscle RelaxationQuadriceps MusclePectoralis MusclesFacial MusclesMuscle SpindlesRespiratory MusclesCell DifferentiationRNA, MessengerPapillary MusclesIsometric ContractionHindlimbRabbitsCells, CulturedRegenerationAbdominal MusclesSarcomeresTime FactorsCalciumMasseter MuscleMolecular Sequence DataPAX7 Transcription FactorGlycogenMasticatory MusclesActinsIntercostal MusclesElectromyographyMyocardiumDiaphragmGene Expression RegulationSignal TransductionMEF2 Transcription FactorsEmbryo, NonmammalianChick EmbryoElectric StimulationSomitesTranscription FactorsInsulinMuscular DystrophiesPsoas MusclesHypertrophyBase SequenceNeuromuscular JunctionMice, Inbred C57BLMuscular Dystrophy, AnimalMyosinsDesminExtremitiesMice, Inbred mdxAmino Acid SequenceSarcoplasmic ReticulumAgingRats, Sprague-DawleyProtein IsoformsRats, WistarImmunohistochemistryMice, TransgenicZebrafishModels, BiologicalPhysical ExertionChickensExerciseMotor NeuronsMice, KnockoutGlucoseIn Situ HybridizationOrgan SpecificitySarcolemmaTropomyosin