Tag Lionel E. Lazaro MD

Introduction The pectoralis major (PM) muscle functions as a potent flexor, adductor, and internal rotator of the shoulder, as well as a dynamic stabilizer of the glenohumeral joint ( ). Although the PM is not required for activities of daily…

Introduction ▪ Injuries to the pectoralis major (PM) occur infrequently, typically in young male athletes ( ). ▪ This injury most often develops during high loads, with the arm extended, abducted, and externally rotated, while transitioning from eccentric to concentric…