Subclavius muscle
What is the Subclavius muscle?
A short, three-sided muscle of the thoracic wall located below the clavicle is the subclavius muscle. It travels laterally from the first rib to insert on the middle third of the clavicle’s undersurface.
The fundamental capability of the subclavius is to stabilize the clavicle during the action of the shoulder girdle. In addition, it is important in preventing injuries to the nearby neurovascular structures because of cracks in the clavicle.
Origin
The first rib is where the subclavius muscle gets its start. This muscle specifically begins in the space between the first rib’s bone and cartilage. The muscle moves outward from this point.
Insertion
It inserts into the clavicle’s subclavian groove, which is on the inferior surface of the third clavicle.
Innervation
The subclavian nerve (C5-6) is a short branch of the superior brachial plexus that innervates the subclavius.
Blood supply
The suprascapular artery and the clavicular branch of the thoracoacromial artery supply arterial blood to the subclavius muscle.
Function
The active stabilization of the clavicle at the sternoclavicular joint during shoulder and arm movements is the subclavius muscle’s primary function. Additionally, when it contracts, the sternal end of the clavicle is lowered and the first rib is raised. Although this somewhat insignificant action helps to prevent clavicle dislocation at the sternoclavicular joint during certain types of movement.
In the event of a fractured clavicle, the superior trunk of the brachial plexus and the adjacent subclavian blood vessels must be protected from injury by the subclavius.
Clinical relations
Within the costoclavicular space, the vessels and nerves that run just behind the subclavius muscle may sometimes be compressed between the clavicle and the first rib. One of the three types of thoracic outlet syndromes (TOS), is known as a costoclavicular syndrome.
This condition can be brought about by cracks and thoracic malformations, among others. Brachial plexus irritations and arm circulatory disorders are typical symptoms.
Subclavius muscle stretching
Sit on the edge of the tucked cover on the floor. Your pelvis will be tilted forward by the blanket, allowing you to sit taller and straighter. Your legs are straight out in front of you and together.
Put your hands on one or the other side of your hips and somewhat behind you on the floor.
Press your palms into the floor as you bring the shoulder blades together and down toward the tailbone to begin the stretch.
To protect the lower back, drag the belly button toward the spine.
The chest is the focus of this stretch, so you shouldn’t feel any strain or discomfort in your lower back.
The legs remain active throughout. The focus remains fixed on the horizon. The shoulders and ears are parallel.
Relax the arms after remaining in this position for one to two minutes to release the stretch.
Subclavius muscle strengthening exercise
Self Massage Technique
Laying on the floor
Put the yoga block on the floor at the most reduced level. The block should be under your right collarbone as you lie face down. As shown in the image, use your arms and hands to support yourself. Your hand’s fingertips provide support for your right arm. Place the tennis ball just below your collarbone between you and the block. You want to hit the area where your subclavius muscle is just below your collarbone. Learn the body of the tennis ball with care. Depending on how much weight you press into the ball, you can control how much pressure is applied. To massage the muscle under the collarbone, move back and forth along the ball from here.
Standing
you will require accessible wall space. Stand in front of the wall to begin. Place the tennis ball just below your collarbone between you and the wall. With your left hand still holding the ball, spider your fingers out to the side with your left arm and begin to gently lean into the ball with your body weight. Massage the area below the collarbone in the same gentle motion as above.
Alternating floor press
Place two kettlebells next to your shoulders as you lie on the floor. Position one set up on the chest and afterward the other one. Make sure to hold the kettlebells with the palms facing forward and using the handle. Hold the kettlebells high above the chest by extending both arms. Bring one of the kettlebells to the chest and turn the wrist in the locked-out kettlebell’s direction to lower it. Repeat with the other side of the kettlebell after raising it. For a comprehensive chest workout, perform 10 repetitions on each side.
FAQ
How does the small subclavian muscle work?
A small muscle on both sides of the upper chest is the subclavius muscle. This muscle is specifically situated beneath both of the clavicle bones, which are also referred to as the collarbones. While the shoulder moves the arm, the subclavius muscle keeps the collarbone in place.
Which parts make up the subclavius?
The anterior scalene muscle is compared to the three segments of the subclavian artery that make up its course. The vertebral artery, the internal thoracic artery, the thyrocervical trunk, the costocervical trunk, and the dorsal scapular artery are the primary branches of the subclavian artery.
What exactly is pain that comes from the subclavian?
The ipsilateral Biceps Brachii and lateral forearm is the name of the pain map for Subclavius muscle trigger points. Pain will be felt locally, just below the clavicle. In the arm, shoulder, and hand, pain can feel like pins and needles.
How can you make your subclavius stronger?
Directions: Apply a vertical and posterior force directly under the clavicle bone with your thumb. Slowly move the thumb across the entire clavicle on this muscle. Slow down and occasionally stop in areas that are extremely tender if they are tender. For a few minutes, play out this activity.
How is the subclavius palpated?
Subclavius: Palpation
The subclavius muscle lies straightforwardly under the collarbone and the pectoralis major. It’s a little harder to feel because of this. However, you might be able to feel it with your fingers underneath your collarbone if you bring your arm close to your body and rotate the shoulder inward.
