MyocardiumMusclesMuscle ProteinsMuscle, SmoothMuscle, SkeletalMuscle Fibers, SkeletalMuscle, Smooth, VascularMuscle DevelopmentMuscle ContractionHeartMyocardial StunningMuscle FatigueMuscle Fibers, Fast-TwitchMuscle DenervationMyocardial ContractionMuscle Fibers, Slow-TwitchMyocytes, Smooth MuscleMitochondria, MuscleNeck MusclesOculomotor MusclesMuscle, StriatedMuscle RelaxationMuscle SpindlesMuscle CellsDogsRespiratory MusclesHeart VentriclesMuscle WeaknessPapillary MusclesMyocardial IschemiaAbdominal MusclesMyocardial InfarctionQuadriceps MuscleTime FactorsIsometric ContractionMasseter MuscleMyofibrilsCoronary CirculationFacial MusclesRabbitsMasticatory MusclesMyocytes, CardiacCalciumIntercostal MusclesMyocardial Reperfusion InjuryElectromyographyMuscular AtrophySatellite Cells, Skeletal MuscleRats, Sprague-DawleyCells, CulturedMyosin Heavy ChainsRats, WistarPectoralis MusclesMuscular DiseasesElectric StimulationRNA, MessengerCreatine KinaseDisease Models, AnimalPsoas MusclesCardiotonic AgentsMyocardial ReperfusionCardiomyopathiesCoronary VesselsHindlimbBiomechanical PhenomenaTemporal MuscleSarcomeresRegenerationPericardiumVentricular RemodelingSarcolemmaHemodynamicsVentricular FunctionMyoblasts, SkeletalImmunohistochemistryVentricular Function, LeftTissue SurvivalGlycogenOxygen ConsumptionSarcoplasmic ReticulumSignal TransductionPharyngeal MusclesCardiomegalyActinsEchocardiographyDiaphragmPhosphocreatineMice, Inbred C57BLMyoblastsHeart AtriaGuinea PigsAction PotentialsCardiomyopathy, DilatedMotor NeuronsHeart FailurePerfusionNeuromuscular JunctionGene Expression RegulationCoronary DiseaseDose-Response Relationship, Drug