Which of the following statements is true concerning the biomechanical properties of ligaments, if the rate of application of the force is increased?
a. The ligament stores less energy to failure.
b. The ligament requires more force to rupture.
c. The ligament has decreased stiffness.
d. The stiffness of the ligament is unchanged.
ANS: B
All viscoelastic tissues exhibit rate-dependent properties that cause a change in tissue behavior
based on rate of application of a force. When viscoelastic materials are loaded rapidly, they exhibit
greater resistance to deformation than when loaded more slowly and require more force to failure
than when loaded more slowly.
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