title: The altered performance of the hypertrophied and failing heart.
mesh_terms: D000818:Animals; D006332:Cardiomegaly / Q000503:physiopathology*; D002415:Cats; D006168:Guinea Pigs; D006321:Heart / Q000503:physiopathology; D006333:Heart Failure / Q000209:etiology / Q000503:physiopathology*; D006352:Heart Ventricles; D006801:Humans; D009119:Muscle Contraction; D009210:Myofibrils / Q000503:physiopathology; D009929:Organ Size; D010210:Papillary Muscles / Q000503:physiopathology; D013312:Stress, Physiological; D013564:Sympathetic Nervous System