Issue link: https://www.massageandbodyworkdigital.com/i/621015
42 m a s s a g e & b o d y w o r k j a n u a r y / f e b r u a r y 2 0 1 6 Palpating the Deltoid Positioning: client supine with arm at side. 1. Locate the clavicle and follow it laterally to the acromion, then posteriorly to the spine of the scapula. 2. From here, palpate inferiorly along the muscle belly with the palm of your hand. 3. Continue palpating the muscle belly as it converges about halfway down the lateral humerus. 4. Gently resist as the client abducts the shoulder to ensure proper location. FUNCTIONAL ANATOMY The posterior fibers of the deltoid are antagonists to the anterior fibers in all motions except abduction. These fibers horizontally abduct and externally rotate the shoulder. They also work with the latissimus dorsi and teres major to extend the shoulder, with the pectoralis major contributing to this motion from overhead, flexed positions. Functionally, these movements are critical for pulling and overhand throwing motions. Effective and efficient movement of the glenohumeral joint depends on proper coordination and development of all fibers of the deltoid and the muscles of the rotator cuff. Christy Cael is a licensed massage therapist, certified strength and conditioning specialist, and instructor at the Bodymechanics School of Myotherapy & Massage in Olympia, Washington. Her private practice focuses on injury treatment, biomechanical analysis, craniosacral therapy, and massage for clients with neurological issues. She is the author of Functional Anatomy: Musculoskeletal Anatomy, Kinesiology, and Palpation for Manual Therapists (Lippincott Williams & Wilkins, 2009). Contact her at functionalbook@hotmail.com. Editor's note: The Client Homework element in Functional Anatomy is intended as a take-home resource for clients experiencing issues with the profiled muscle. The stretches identified in Functional Anatomy should not be performed within massage sessions or progressed by massage therapists, in order to comply with state laws and maintain scope of practice. Client Homework—Rows 1. Sit or stand with your eyes forward and your spine straight. 2. Reach forward and grasp the handle (or handles) with both hands. 3. Pull back by bending your elbows and pinching your shoulder blades together. 4. Keep your hands evenly spaced through the entire movement as you pull toward your chest. 5. Gradually return to the original position, then repeat.