![]() And despite the luxury to move in so many ways, it brings about a problem of holding it all together, and actually where many problems creep in for the shoulder. ![]() Free to wave around like those tube dancers that jive in front of used car lots.Īs with anything, though, there is a trade-off. It can go fast, for things like throwing, or it can exert force in many ways for things like lifting weights or carrying bags of dog food, or it can be very precise to catch something tossed your way.Ĭompared to the hip, it’s much less clunky. In summary, the shoulder is highly capable of movement. The advantage of this is movement! The shoulder isn’t bound up but can move freely in many different directions. However, the ball of the arm bone is much larger than the socket, often described as a golf ball sitting on a tee. The arm bone (or humerus) attaches to the shoulder socket via a ball, hence the phrase ball and socket joint. The HumerusĪnd finally, we’re at the true shoulder, and where most locate their pain. ![]() What I’m getting at, is your fix for shoulder pain, or building arm strength, must include the muscles that move the scapula as well. The scapula and arm must work together as a team, otherwise, it’s just a half working shoulder. This is all too important for the shoulder. The key word rhythm describes the movement of two things in synchrony. The term used to describe how the scapula and arm move together is scapulo-humeral rhythm. On the outer corner of the triangle is the insertion point for the arm bone and what most consider their shoulder socket.īefore moving onward, move your shoulder blade around a bit. Those muscles act as guide-wires, pulling the shoulder blade into various positions. The scapula hangs off the end of the clavicle and against the rib cage, held in place by 17 different muscles. Next is the scapula, also known as the shoulder blade, or sometimes called the scap. This creates a support beam to the shoulder and is the one bony attachment of the shoulder complex to the frame of the body. Next on the list of supportive bones is the clavicle. But for the classic shoulder bones, it comes down to three that make up the joint. The big take-home is that often the shoulder relies on the body's posture to put it in a position to work most effectively. This becomes especially important in sports and workouts that require greater speeds and heavy loads. Thus, you need your spine to extend, bend, and rotate to accomplish the many different movement tasks demanded of the shoulders. You’ll have much greater success with the range of motion achieved by rotating your spine. Look over your shoulder and try to reach something you see without turning your shoulders. You’ll notice that they get stuck earlier versus sitting tall with the chest up and spine extended. You can easily feel the impact that the spine has on your shoulders by slumping your chest forward as far as you possibly can and then lifting your arms as high as you can overhead. While technically these structures are not the shoulder, they do add a ton to its structure and movement. The spine and rib cage create the shoulder foundation. They are the scaffolding that supports the entire structure, similar to a wood frame for a house. Shoulder Anatomy– “The Framework”įirst, get to know the bones of your shoulder. With a general understanding you’ll be ready to dive deeper into why it hurts and ways to fix it. Take some time to get to know your shoulder. ![]()
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