CardiomyopathiesCardiomyopathy, RestrictiveCardiomyopathy, DilatedCardiomyopathy, HypertrophicCardiomyopathy, Hypertrophic, FamilialArrhythmogenic Right Ventricular DysplasiaMyocardiumChagas CardiomyopathyIsolated Noncompaction of the Ventricular MyocardiumSarcomeresMyocarditisHeart DiseasesCardiac MyosinsMyocytes, CardiacArrhythmias, CardiacMitochondrial DiseasesGenetic TestingDesminHeart FailureMutationDeath, Sudden, CardiacHeart VentriclesEndomyocardial FibrosisCardiomegalySarcoglycansDisease Models, AnimalEchocardiographyPhenotypeHeartTroponin TMitochondria, HeartMagnetic Resonance Imaging, CineMyosin Heavy ChainsPedigreeMyocardial ContractionVentricular Dysfunction, LeftMutant ProteinsMyofibrilsElectrocardiographySportsMutation, MissenseDystrophinFibrosisMyocardial IschemiaMagnetic Resonance ImagingDiastoleCalciumMice, TransgenicVentricular Function, LeftHeart TransplantationVentricular RemodelingDiabetic CardiomyopathiesGenetic Predisposition to DiseaseContrast MediaMuscle ProteinsCase-Control StudiesBiopsyHypertrophy, Left VentricularStroke VolumeCardiovascular DiseasesDNA, MitochondrialPredictive Value of TestsCells, CulturedRisk FactorsMice, Inbred C57BLTime FactorsPrognosisRetrospective Studies