This is a broad triangular-shaped muscle originating from the center of the back, extending from the lower thoracic spine to the base of the skull, inserting on the scapula and clavicle. Contraction of the lower fibers draws the scapula downward. Contraction of the upper fibers elevates and rotates the scapula upward. This action increases contact of the humeral head with the glenoid in overhead movements (such as full arm balance). Contraction of the middle fibers adducts the scapula, assisting the rhomboids to open the chest.
Was this article helpful?
If you're set on loosing weight and becoming more flexible with yoga. Then this may be the most important letter you'll ever read! Who Else Wants To Quickly Get Into Shape, Loose Weight, And Become More 'In Tune' With Your Mind, Body And Spirit In Just 5 Days? It doesn't matter if you've never exercised a day in your life, or your the most fit person in the world... This Yoga guide will help you not only get MORE fit, but make you feel more energized after each workout!