Muscle, SkeletalVentricular Dysfunction, LeftMyocardiumVentricular DysfunctionHeartVentricular Dysfunction, RightMusclesHeart FailureCardiomyopathiesVentricular Function, LeftMyocytes, CardiacEchocardiographyElectrocardiographyMyocardial ContractionMuscle ProteinsHeart DiseasesHemodynamicsCardiomyopathy, DilatedHeart VentriclesStroke VolumeTime FactorsCardiomegalyMuscle, SmoothMuscle Fibers, SkeletalHeart Defects, CongenitalPapillary MusclesDisease Models, AnimalHypertrophy, Left VentricularCardiac OutputFibrosisMuscle ContractionTreatment OutcomeMuscle, Smooth, VascularSeverity of Illness IndexMyocardial InfarctionArrhythmias, CardiacMuscle DevelopmentVentricular RemodelingProspective StudiesRetrospective StudiesNatriuretic Peptide, BrainDogsSystoleMice, KnockoutDiastoleMice, TransgenicCardiotonic AgentsMyocardial IschemiaCardiac Surgical ProceduresMice, Inbred C57BLCardiac Pacing, ArtificialCalciumFatal OutcomeHeart RateRadionuclide VentriculographyDeath, Sudden, CardiacHeart AtriaFollow-Up StudiesTroponin ICardiac CatheterizationBlood PressureMyofibrilsSarcomeresDobutamineMuscle Fibers, Fast-TwitchPredictive Value of TestsCardiac Output, LowCoronary CirculationRabbitsMyocardial StunningVentricular FunctionRats, Sprague-DawleyMuscle Fibers, Slow-TwitchPrognosisAtrial Function, LeftBiological MarkersEchocardiography, DopplerExercise TestCardiac VolumeCoronary DiseaseCells, CulturedMitochondria, MuscleMuscle FatigueChagas DiseaseVentricular PressureErectile DysfunctionMuscle DenervationRats, WistarRisk FactorsHeart Function TestsAtrial Natriuretic FactorCoronary Artery BypassAngiotensin-Converting Enzyme InhibitorsMyocytes, Smooth MuscleTroponin CTomography, Emission-Computed, Single-PhotonMuscle CellsVentricular Function, RightTakotsubo CardiomyopathyTroponin T