Why is it important to stabilize the scapula?
The scapular stabilizers provide strength, joint stability and prevent impingement of the shoulder joint complex. The muscles that comprise the scapular stabilizers are the: Serratus anterior– Which upwardly rotates the scapula.
Why is the scapulothoracic joint important?
The main function of the scapulothoracic articulation is to center the socket part of the shoulder joint to the ball of the arm during elevation of the arm. It also adds range to the arm when reaching overhead.
Why do we need to strengthen your scapula bone?
The shoulder requires both mobility and stability in order to support and stabilize the rest of the upper extremity. Poor movement patterns and/or deficits in muscle strength at the scapula can lead to uncoordinated movement, instability and pain/injury in the elbow, wrist, and hand.
What are the two main functions of the Scapulothoracic articulation?
There are 17 muscles that attach to or originate on the scapula (see Table 1 below), and they perform two major roles: (1) to maintain a stable base of support for the humerus and (2) to allow for dynamic positioning of the glenoid fossa during glenohumeral elevation.
What does scapular stabilization mean?
Because this foundational definition is difficult to apply directly to the scapula, the term “scapular stability” has come to imply “normal” scapula movement on the thorax during upper extremity motions.
What muscles stabilize the scapulothoracic joint?
Scapulothoracic joint stability Such muscles to consider are the serratus anterior, serratus posterior, the trapezius (upper / middle / lower), the rhomboids, teres major, the levator scapulae, the latissimus dorsi and the flexibility and mobility of the thoracolumbar fascia.
How does increased joint mobility impact joint stability?
Quite often the joints that are stability-based become more mobile, and the joints that are mobility-based become more stable. When the joints within the kinetic chain lose their primary role due to dysfunction and change roles, human movement becomes compromised and the chance of injury increases significantly.
What controls the scapulothoracic joint?
Since it has no ligaments, the scapulothoracic junction is stabilized by the synchronized actions and passive tensions of the three functional muscle units; The trapezius muscle. The serratus anterior muscle. The medial stabilizers of the scapula; levator scapulae and rhomboid muscles.
What is a scapular brace?
A scapular-protecting brace is one option for treating patients with a winging scapula in isolated serratus palsy.
What provides stability to the scapula on the thorax?
Scapulothoracic Stability[edit| edit source] Stability of the scapula on the thorax is provided by the structures that maintain integrity of the linked AC and SC joints. The muscles that attach to both the thorax and scapula maintain contact between these surfaces while producing the movements of the scapula.
What is the function of the scapulothoracic junction?
The scapulothoracic junction enables the mobility of the scapula around the fulcrum of the acromioclavicular joint. Scapular mobility is important for the proper positioning of the shoulder joint in space. The scapula moves by gliding against the chest wall in three degrees of freedom; Elevation (range of motion 40°) – depression (RoM 10°)
What is scapular stabilization and why is it important?
The scapula is your foundation of support for the shoulder joint and all the movements of your upper extremities. With poor scapular stabilization, you are at risk of all types of injuries, such as shoulder impingement, shoulder instability, muscle strains, cervical strain, and nerve entrapments. We all know about the kinetic chain.
How does scapular instability affect the glenohumeral joint?
Scapular instability leaves the glenohumeral joint (GH joint) at risk of injury as the GH joint requires both strength and endurance of scapular stabilizers for it to be protected. The stability of the GH joint cannot come from the humerus since the arm does not have anything to stabilize from; it has no anchors.