The Pectoralis Minor. Permission Joseph E. Muscolino. The Muscular System Manual - The Skeletal Muscles of the Human Body, 4th ed. (Elsevier, 2017).

Six Causes of Shoulder Impingement Syndrome – Part 2

For scapular upward rotation to occur, scapular downward rotator musculature must lengthen. If scapular downward rotation muscles are tight, they might not be flexible enough to allow for scapular upward rotation, thereby causing shoulder impingement syndrome to occur.

Shoulder Impingement Syndrome. Permission Joseph E. Muscolino. Kinesiology - The Skeletal System and Muscle Function, 3ed (Elsevier, 2017).

Six Causes of Shoulder Impingement Syndrome – Part 1

Shoulder impingement syndrome is a condition in which the distal tendon of the supraspinatus and the subacromial bursa become impinged between the head of the humerus and the acromion process of the scapula. Following are the six major causes of shoulder impingement syndrome.

Superficial anterior view of the muscles of the neck

Musculature of the Cervical Spine

To perform orthopedic manual therapy to the neck that is accurate and specific, we need to know the attachments and actions of the muscles of the neck.