When it comes to shoulder health, many people focus on the deltoids or rotator cuff muscles—but few realize just how important the serratus anterior is. In fact, multiple studies have shown a strong correlation between poor serratus anterior activation and common shoulder problems like impingement syndrome, rotator cuff injuries, and scapular dyskinesis (poor movement of the shoulder blade).
So, what does the serratus anterior do, and why should you care?
