Work on regaining appropriate scapular upward rotation via actual scapular movement and not extending through lower back or shrugging. (tonygentilcore.com)
As the most flexible joint in your body, your shoulders rely on the serratus anterior for upward rotation of the arms and protracting the scapula. (health.com)
As the most flexible joint in your body, your shoulders rely on the serratus anterior for upward rotation. (health.com)