MusclesMuscle ProteinsMyocardiumMuscle, SkeletalMyocytes, CardiacHeartMuscle, SmoothMuscle Fibers, SkeletalPapillary MusclesMuscle, Smooth, VascularMuscle ContractionMuscle DevelopmentMyocardial ContractionCardiac OutputMyofibrilsSarcomeresMuscle Fibers, Fast-TwitchCalciumMuscle Fibers, Slow-TwitchArrhythmias, CardiacMuscle FatigueHeart VentriclesMuscle DenervationMitochondria, MuscleTroponin CRabbitsCardiac Surgical ProceduresMyocytes, Smooth MuscleTroponinMuscle CellsCardiomegalyDeath, Sudden, CardiacTime FactorsTroponin IMuscle RelaxationNeck MusclesOculomotor MusclesCells, CulturedMuscle, StriatedIsometric ContractionCardiac MyosinsMyosin Heavy ChainsSarcoplasmic ReticulumMuscle SpindlesRats, Sprague-DawleySarcolemmaRespiratory MusclesCardiomyopathiesDogsMuscle WeaknessRyanodine Receptor Calcium Release ChannelHeart DiseasesTropomyosinMuscular DiseasesMyosinsAbdominal MusclesDystrophinCardiac Pacing, ArtificialQuadriceps MuscleRNA, MessengerActinsTroponin TRats, WistarConnectinGuinea PigsModels, CardiovascularElectric StimulationCreatine KinaseCardiac TamponadeMasseter MuscleMolecular Sequence DataHeart RateMyoblasts, CardiacHeart FailureFacial MusclesMasticatory MusclesVentricular FunctionKineticsIntercostal MusclesIsoproterenolAction PotentialsElectromyographyCardiac CatheterizationMuscular AtrophyMice, TransgenicChickensMembrane PotentialsHeart Conduction SystemActin CytoskeletonRyanodineMicroscopy, ElectronMice, Inbred C57BLSatellite Cells, Skeletal MuscleMice, Inbred mdxAnimals, NewbornGene Expression RegulationDesminElectrocardiographyOrgan SpecificityHeart Arrest