The TuneUp Program

Serratus anterior is so named because it has a number of seperate sections giving it a serrated apperance. It attaches on the anterior side of the medial border of the scapula and inserts onto the first eight or nine ribs. It is active in rotation and primarily protraction of the scapula.

It's wide base across the lateral rib cage supports a strong pull on the scapula that brings it forward when throwing. Our sedentary lifestyles and tension in the pectoralis muscles mean that serratus anterior is often weak.

It also functions to stabilise a fixed scapula by pulling its medial border into the posterior chest wall. The winging associated with the right shoulder reaching forward to pick the strings pulls this medial border away from the ribs creating fascial tension and eventually pain all along the inside of the scapula.