Which of the following is NOT true regarding wheelchair propulsion?
a. Muscles of internal rotation of the shoulder are used to a greater degree than the external rotators.
b. Wheelchair athletes train to produce maximal torque to the wheelchair rim to create maximal velocity.
c. Forward movement requires a powerful external rotation at the shoulder followed by a recovery phase using internal rotators.
d. Overuse injuries are common in the shoulder region due to unequal agonist/antagonist muscle use.
Answer: C