A law that the contraction of the ventricles is in proportion to the length of the ventricular muscle fibres at the end of diastole.
A law stating that a muscle, including the heart muscle, responds to increased stretching at rest by an increased force of contraction when stimulated.
A law that states that the force of blood ejected by the heart is determined primarily by the length of the fibers of its muscular wall (i.e., an increase in diastolic filling lengthens the fibers and increases the force of muscular contraction).