Symptoms of Overhead Throwing in the Elbow

The ulnar collateral ligament can be commonly injured, but may not present with gross laxity or instability. During which phase of the overhead throwing cycle is a baseball pitcher most likely to rupture the medial ulner collateral ligament complex of the elbow? And the choices are, one, follow through, two, ball release, three, early acceleration, four, early cocking and five, wind up. So the medial u c l is subjected to near failure tensile stresses during the late cocking slash, early acceleration phase of throwing. By mechanical testing has shown that valgus forces as high as 64 newton meters at the elbow during late cocking and early acceleration phases of throwing.