The effect of the duration of the action potential on contraction in the mammalian heart muscle.
D000200:Action Potentials; D000818:Animals; D001696:Biomechanical Phenomena; D002415:Cats; D004285:Dogs; D006321:Heart / Q000502:physiology*; D066298:In Vitro Techniques; D008722:Methods; D009119:Muscle Contraction; D009206:Myocardium; D010210:Papillary Muscles; D012756:Sheep; D013997:Time Factors