Muscle, SkeletalInsulinAdrenergic beta-AgonistsMusclesMuscle Fibers, SkeletalReceptors, Cytoplasmic and NuclearCells, CulturedCalciumMuscle ProteinsRats, Sprague-DawleyMuscle ContractionMuscle DevelopmentMuscle, SmoothMuscle Fibers, Fast-TwitchMuscle, Smooth, VascularMitochondria, MuscleMuscle Fibers, Slow-TwitchMuscle DenervationSatellite Cells, Skeletal MuscleMuscle FatigueMuscular AtrophyMuscular DiseasesRabbitsMuscle CellsDopamine AgonistsMyofibrilsQuadriceps MuscleMuscle RelaxationMyoblastsIsometric ContractionMyocytes, Smooth MuscleGlycogenMuscle WeaknessHindlimbMuscle, StriatedOculomotor MusclesRNA, MessengerRats, WistarMyoblasts, SkeletalMyosin Heavy ChainsTime FactorsNeck MusclesMuscle SpindlesRespiratory MusclesElectric StimulationMyoD ProteinMyostatinMice, Inbred C57BLSignal TransductionSarcoplasmic ReticulumKineticsDose-Response Relationship, DrugGlucosePapillary MusclesRegenerationMyocardiumMuscular Dystrophy, AnimalMice, Inbred mdxAbdominal MusclesGene Expression RegulationMolecular Sequence DataPhysical ExertionExerciseSarcolemmaMasseter MuscleDiaphragmElectromyographyPhysical Conditioning, AnimalGABA AgonistsAdenosine TriphosphateGlucose Transporter Type 4