The TuneUp Program

The rhomboids originate on the upper thoracic vertebrae and run obliquely onto the medial border of the scapula. They share a fascial connection on the inside of the medial scapula with serratus anterior, the lower serrations of which extend this oblique line onto the side of the rib cage.

The guitarists tendency to roll his or her shoulder forward and wing the scapula places lot of strain on these two muscles, particularly at the medial border of the scapula which often becomes painful toward the inferior angle. The next page on shoulder biomechanics explains the role of these two muscles in stabilising the scapula.