MusclesMuscle ProteinsMuscle, SmoothMuscle, SkeletalMuscle Fibers, SkeletalMuscle, Smooth, VascularMuscle DevelopmentMuscle ContractionMuscle FatigueMuscle Fibers, Fast-TwitchMuscle DenervationMuscle Fibers, Slow-TwitchMyocytes, Smooth MuscleMitochondria, MuscleNeck MusclesOculomotor MusclesMuscle, StriatedMuscle SpindlesMuscle RelaxationRespiratory MusclesMuscle WeaknessPapillary MusclesLymphocyte DepletionMuscle CellsAbdominal MusclesQuadriceps MuscleMasseter MuscleFacial MusclesMasticatory MusclesIntercostal MusclesElectromyographyMuscular AtrophyIsometric ContractionSatellite Cells, Skeletal MuscleCells, CulturedCalciumPectoralis MusclesMuscular DiseasesTime FactorsRabbitsPsoas MusclesMyofibrilsHindlimbElectric StimulationTemporal MuscleRNA, MessengerRats, Sprague-DawleyMice, Inbred C57BLMyosin Heavy ChainsGlycogenPharyngeal MusclesDiaphragmBiomechanical PhenomenaSignal TransductionMotor NeuronsActinsRats, WistarAdenosine TriphosphateNeuromuscular JunctionMyoblastsKineticsMuscular Dystrophy, AnimalModels, BiologicalGene Expression RegulationCell LineMuscle CrampMolecular Sequence DataMyocardiumRegenerationMice, KnockoutPhosphorylationMembrane PotentialsMice, Inbred mdxPhysical ExertionMyostatinDose-Response Relationship, DrugImmunohistochemistrySarcomeresMyoD ProteinCell DifferentiationLegGlucoseDisease Models, AnimalAgingInsulinExerciseBlotting, WesternMuscle Stretching ExercisesMuscle RigidityAortaOxygen ConsumptionGuinea PigsHypertrophyMice, TransgenicEnergy MetabolismCatsSarcoplasmic ReticulumMyoblasts, SkeletalDogsPhysical Endurance