title: The significance of the interrelationship between the intensity of the contractile state and the velocity of relaxation in adapting cardiac muscle to function at high work loads.
mesh_terms: D000818:Animals; D001794:Blood Pressure; D002118:Calcium / Q000494:pharmacology; D004285:Dogs; D006168:Guinea Pigs; D006352:Heart Ventricles / Q000187:drug effects; D009200:Myocardial Contraction / Q000187:drug effects; D005082:Physical Exertion; D051381:Rats; D013045:Species Specificity; D016276:Ventricular Function
chemical_list: D002118:Calcium