If you are like most of us in the Western world, you probably spend a good part of your day sitting at the computer, sitting in your car, sitting in front of the television, sitting at your desk hunched over important papers. We could spend our day sitting in lotus with our back straight and our shoulders broad, blissing out as we connect with our central channel of energy. Unfortunately, most of us end up sitting in “slouch-asana”, holding this pose for far longer than five breaths. Our shoulders are rounded forward and our chest is sunken. We know we should sit up straight, but it just takes too much darn effort! Later, we find our way into a yoga class and we are asked to stand tall, roll our shoulders back, and lift our sternum (breastbone). As we chant “Vande gurunam,” we embrace the opportunity to engage our upper back to support the opening of our heart to the beautiful invocation. We maintain this well enough until we come to chaturanga dandasana and have to keep the good posture while supporting much of our weight on our hands! Suddenly our shoulders are rounding toward the floor and all we can feel is our chest and our arms. Our back muscles are at home on the couch.
In a typical full primary series practice we will do chaturanga dandasana as many as 56 times! It is not surprising that many of us complain of shoulder pain in chaturanga dandasana. This shoulder pain can be given many different labels: repetitive trauma (overuse) injury, impingement syndrome, thoracic outlet syndrome, shoulder instability, rotator cuff tear, tendonitis, etc. Regardless of which diagnosis is given, the condition is usually due to a muscular imbalance in the shoulder region: the anterior (front) muscles are tight and the posterior (back) muscles are overstretched and/or weak. This leads to faulty mechanics in the shoulder region and the development of a painful shoulder syndrome.
Anatomically, our hips are built for stability (with lots of ligaments) while our shoulders are constructed for mobility (with few ligaments). As bipeds, this serves us quite well. As we play with becoming quadrupeds, we must rely on the strength of our shoulder muscles to do the job of ligaments and give us more stability. Crucial to the integrity of the shoulders are the dynamic scapular (shoulder blade) stabilizers. These include the four rotator cuff muscles known as the SITS muscles: supraspinatus, infraspinatus, teres minor, and subscapularis. Collectively, their primary function during all movements of the shoulder joint is to hold the head of the humerus (upper arm bone) in the shallow glenoid cavity (shoulder socket) of the scapula. The job of the rotator cuff muscles is to provide the necessary stability to the glenohumeral joint (shoulder joint), keeping the shoulder safe while the larger shoulder movers (e.g., deltoid, teres major, latissimus dorsi) carry out their function. Without the stability offered by the rotator cuff muscles, increased movement in the shoulder socket occurs resulting in shearing forces across the joint. This can lead to humeral head migration and impingement upon the rotator cuff muscles and tendons – OUCH!
These rotator cuff muscles are located on our back, attaching to our scapulae (shoulder blades). Their tendinous attachments create the “cuff” and insert near the head of the humerus, forming the capsule of the shoulder joint. Because the rotator cuff muscles attach at the scapula and the humerus, they are responsible for much of the movement of both the shoulder blade and upper arm. To safely become a quadruped in chaturanga dandasana, in addition to the front-body muscles that are more easily engaged (e.g., the pectoralis, deltoids and biceps), the rotator cuff muscles must be engaged. These muscles work in concert with the other back muscles (e.g., the serratus anterior, lower trapezius, and latissimus dorsi), to create a healthy balance in the shoulder and support a strong four-point stance.
Waking Up What Is Back There:
Lie on your back with your feet on the floor. Bring the arms straight up toward the ceiling. Draw the arms further up to the ceiling, noticing how that makes you round your upper back. Now keep the arms reaching, but actively draw the backs of the shoulders toward the floor and allow your upper back to flatten against the ground. Notice how this opens the chest. Can you feel muscles around your shoulder blades working? Often, we just need to put our mind in the area of our body we want to engage, and then those muscles will “kick in.”
A classic way to strengthen the rotator cuff muscles can be done from lying on your side. Bend the elbow of your top arm 90 degrees, placing your upper arm against your torso. Squeezing your elbow tight against the side of your waist and keeping your upper arm glued to your side (this is key), begin to draw your forearm toward the ceiling. Done correctly, you should feel the rotator cuff muscles at your shoulder blade working. As you get stronger, you can add a small weight to your hand. It is important that you keep your shoulder drawn down away from your ear, and you keep your elbow waist. The upper arm stays glued to your side.
Before moving into chaturanga dandasana, come into plank pose, or the top of a push-up. Place your shoulders above your wrists, firm your legs and reach your heels back. Soften the buttocks and feel the tone of your lower belly inviting the tail bone toward your pubic bone. Now draw the shoulder blades down your back with the lower tips drawing in against the back ribs. Press the hands evenly into the floor. Feel the clavicles (collarbones) widen, the chest open, and the sternum draw forward. Cultivate a sense of steadiness as you breathe. Bring your attention to the rotator cuff muscles and feel how they provide stability to the shoulders. This position, in itself, can cultivate quite a bit of strength, preparing your back and shoulder muscles for chaturanga dandasana.
As you progress into chaturanga dandasana, keep the same alignment that you had in plank pose. Employ the rotator cuff muscles by actively rolling the shoulders up away from the floor as you lower into chaturanga dandasana. The shoulders should not go below the line of the elbows. Feel your back and shoulder muscles engage while spreading the clavicles and opening the heart.
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