If the scapula does not follow the humeral head properly, it leads to shoulder instability. This is like how the scapula and arm work together in harmony. The seal’s head represents the scapula as he follows the ball with his nose to keep it balanced. This relationship has been compared to a seal balancing a ball on its nose. Their primary function is to make the scapula a stable yet mobile foundation as it moves in sync with the arm. The scapular stabilizing muscles attach the scapula to the body. Their primary function is to stabilize the humeral head in the socket. The rotator cuff muscles originate at the scapula and attach to the humeral head (ball). The shoulder is a ball and socket joint, with the socket being a part of the scapula. The scapula, or shoulder blade, is the triangular shaped bone in the upper back that is the critical link between the arm and rest of the body. This presents a problem in that the selected exercises primarily isolate the rotator cuff muscles and poorly address the scapular stabilizing muscles.įunctional Anatomy of the Shoulder Complex Simply Stated Therefore, the only exercises that were selected from the shoulder rehab programs were the ones that could be performed on the field with rubber tubing. These rehab exercises were designed to be completed in a clinical setting as many elements require the use of therapy tables and dumbbells.Ĭoaches recognized that arm care exercises needed to be completed on the field as they would not get done off the field. The origin of these preventative tubing exercises was extracted from shoulder rehab programs. Arm care is a term that was coined by the baseball community to help prevent shoulder and elbow injuries. How did arm care come about? If you go to a rehab facility and ask them for an arm care program, you might get some weird looks. Traditional Arm Care Programs Do Not Address the Scapula By exploring traditional arm care programs and the scapular biomechanics when throwing, we can paint a clear picture of the deficiencies and necessity for a practical, structured, and efficient arm care program for every baseball player. Additionally, scapular dyskinesis negatively affects energy transfer from the body into the arm resulting in reduced throwing velocity. In fact, the latest research indicates that most injuries at the shoulder are a direct reflection of a misaligned scapula. Clinical and field testing from the youth level to the professional ranks has proven that most throwing athletes have weak scapular stabilizing muscles and many of them suffer from scapular dyskinesis, meaning that either the position and/or movement of the scapula is dysfunctional. These scapular stabilizing muscles control the position and movement of the scapula which are vital to arm health and performance. The emphasis given to strengthening the scapular muscles in throwing athletes is under-valued and immensely under-addressed. Working in the shadow of Fenway Park, and with a grant from Major League Baseball, the researchers have found a common denominator that, they say, is a likely culprit in some of the most common shoulder injuries among pitchers - a misaligned scapula, better known as the shoulder blade.” “Boston researchers are gaining insights into the causes of baseball shoulder problems - which derail more major leaguers than just about any other injury. Crossover Symmetry as Published in Collegiate Baseball Newspaper
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