Treating Latissimus Dorsi Trigger Points - Dr. Jonathan Kuttner

A neuromuscular efficient core is required for the latissimus dorsi to provide the necessary forces to carry out some function at the glenohumeral joint.

Neuromuscular inefficiency sets up the foundation for repetitive stress and associated “frozen shoulder”-type symptoms. The latissimus dorsi decelerates lateral rotation, flexion, and abduction of the humerus in the glenohumeral joint.

When the insertion of the latissimus dorsi is flexed, the muscle plays a role in tilting the pelvis in an anterolateral direction.

A bilateral contraction leads to hyperextension of the lower back, with accompanying anterior tilting of the pelvis.

A muscle this size, covering so much of the posterolateral ribcage, will also have an influence on diaphragmatic function.

Any movement of the humerus will have an effect that extends into the thoracolumbar fascia and further down the kinetic chain.

Satellite Trigger Points

Concerning satellite myofascial trigger points, consider the following muscles: pectoralis major, teres major, subscapularis, triceps brachii, scalenes, upper rectus abdominis, iliocostalis, serratus anterior, serratus posterior superior and inferior, lower trapezius, and rhomboids.

Extends flexed arm. Adducts and medially rotates humerus. It is one of the chief climbing muscles, since it pulls shoulders downward and backward, and pulls the trunk up to the fixed arms (therefore also active in swimming front crawl).

Assists in forced inspiration by raising lower ribs.

Antagonists: deltoid, trapezius.

Referred Pain Patterns