Relaxing ventricle performs more external mechanical work than quickly released elastic energy.
D000818:Animals; D004285:Dogs; D004548:Elasticity; D004562:Electrocardiography; D006321:Heart / Q000502:physiology*; D066298:In Vitro Techniques; D009200:Myocardial Contraction; D011312:Pressure; D013599:Systole; D016276:Ventricular Function