Serum Response FactorMusclesMuscle ProteinsMyocardiumMuscle, SkeletalMyocytes, CardiacHeartMuscle, SmoothMuscle Fibers, SkeletalMuscle, Smooth, VascularPapillary MusclesMuscle ContractionMuscle DevelopmentMyocardial ContractionTissue Plasminogen ActivatorCardiac OutputCalciumPlasminogen Activator Inhibitor 1MyofibrilsSarcomeresMuscle Fibers, Fast-TwitchUrokinase-Type Plasminogen ActivatorMuscle Fibers, Slow-TwitchArrhythmias, CardiacHeart VentriclesMuscle FatigueRabbitsMuscle DenervationCells, CulturedMitochondria, MuscleMyocytes, Smooth MuscleTime FactorsTroponin CCardiac Surgical ProceduresTroponinMuscle CellsCardiomegalyMolecular Sequence DataDeath, Sudden, CardiacTroponin IRNA, MessengerMuscle RelaxationRats, Sprague-DawleyNeck MusclesOculomotor MusclesMuscle, StriatedIsometric ContractionCardiac MyosinsMyosin Heavy ChainsSarcoplasmic ReticulumDogsMuscle SpindlesSarcolemmaKineticsRespiratory MusclesCardiomyopathiesSignal TransductionRyanodine Receptor Calcium Release ChannelBase SequenceMuscle WeaknessGene Expression RegulationHeart DiseasesTropomyosinAmino Acid SequenceRats, WistarMuscular DiseasesMyosinsActinsAbdominal MusclesDystrophinCardiac Pacing, ArtificialPhosphorylationReceptors, Urokinase Plasminogen ActivatorQuadriceps MuscleGuinea PigsTranscription FactorsMice, Inbred C57BLPlasminogen ActivatorsTroponin TConnectinModels, CardiovascularElectric StimulationCreatine KinaseMice, TransgenicCardiac TamponadeMasseter MuscleHeart RateHeart FailureMyoblasts, CardiacIsoproterenolG(M2) Activator ProteinVentricular FunctionFacial MusclesMasticatory MusclesDose-Response Relationship, DrugAction PotentialsMice, KnockoutIntercostal MusclesChickensDisease Models, Animal