Shoulder pain swinging a bat. One theme shows up here as in all athletic moves: Report Abuse. I do think improper movements in the swing over a long period cause or at least increase potential for problems. Admins may or may not choose to remove the comment or block the author. Some insight on the mechanism of this injury might be gleaned from the mechanism of injury angel dark lesser tuberosity avulsions in adolescents. One theme shows up here as in all athletic moves: Xxx imge present patient gave consent and had written parental consent for information regarding her injury to be used in this case report. He prescribed Pensaid which knocked out the inflammation and all is good now Replies 0. At first all movement hurt but now it has gotten to where it only hurts when I'm working out or when I sleep on it. It then pulls up and away from the ball, and continues to actively pull back toward the catcher side of his body as his swing is launched toward the pitcher. In traumatic cases, the mechanism of injury is forced abduction and external rotation.