MyofibrilsActin CytoskeletonSarcomeresThiadiazinesMusclesMyocardiumMuscle ProteinsTroponinConnectinMyocardial ContractionCalciumMyosinsTroponin ITroponin CMuscle ContractionPsoas MusclesMicroscopy, ElectronRabbitsTropomyosinActininDiacetylHeartActinsMuscle, SkeletalCa(2+) Mg(2+)-ATPaseMuscle, StriatedIsometric ContractionAdenosine TriphosphatasesMuscle Fibers, SkeletalAequorinHistological TechniquesSarcoplasmic ReticulumTroponin TMyocytes, CardiacPapillary MusclesCardiac MyosinsAzocinesDesminCytoskeletonHeart VentriclesAnuraMyosin SubfragmentsPostmortem ChangesContractile ProteinsCreatine KinaseTropomodulinMyosin Light ChainsMyocardial StunningChickensPentanonesAdenosine TriphosphateMitochondria, MuscleBiomechanical PhenomenaCardiotonic AgentsMuscle RelaxationActomyosinMuscle, SmoothKineticsMuscle DevelopmentFerretsChick EmbryoCapZ Actin Capping ProteinTissuesCells, CulturedRats, Inbred StrainsFluorescent Antibody TechniqueVentricular FunctionHydrogen-Ion ConcentrationStrontiumMicroscopy, Phase-ContrastQuinolinesFlight, AnimalDogsOsmolar ConcentrationMice, TransgenicCalpainMuscle Fibers, Fast-TwitchSarcolemmaCardiomyopathy, Hypertrophic, FamilialElectrophoresis, Polyacrylamide GelVinculinPectoralis MusclesMicroscopy, FluorescenceIsoproterenolProtein KinasesRats, Sprague-DawleyPhosphorylationRana esculentaTime FactorsElectric StimulationMuscle, Smooth, VascularModels, BiologicalEthenoadenosine TriphosphateRats, WistarMechanicsAdrenergic beta-Agonists