The levator scap brings the shoulder blade, or scapula, up, which is a movement that is called elevation. It also rotates the scapula downward.
By pulling upward from the inner corner of the scapula bone towards the outside of the neck, where the levator scapula attaches, this muscle indirectly moves the bottom tip of the scapula towards the spine. This is the downward rotation movement mentioned above.
These shoulder blade movements are generally part of the larger movements of flexion and abduction of the shoulder joint. Flexion occurs when you move your arm forward and up towards the ceiling, and abduction occurs when you move your arm out to the side.
During flexion and/or abduction, the levator scap is actively contracting.
Levator scapula muscle contraction can also move the neck. It participates in side bending, which is called lateral flexion, and rotation, or twisting.
The levator scap originates from the cervical vertebra one through four (C1 to C4) and attaches to the inside top edge of the scapula.
One of the primary functions of the levator scap is to keep your shoulder blade in a position that supports a vertical alignment of your head on your neck, and to prevent forward head posture, a condition in which your head is too far forward.
But the shoulder blade is, by nature, an extremely movable bone. Keeping it steady in order to maintain appropriate neck posture is no easy feat.
To understand what a movable shoulder blade may do to your levator scap, which is assigned to keeping it in the right position on your back, imagine standing on a surfboard in the ocean while holding and using your electronic equipment and other office supplies. In this case, dynamic opposing movements would likely require your muscles and bones to both shift independently and to work together to enable you to type, reach for your cell phone and manage your balance as the water surges underneath you.
In this and similar, albeit less dramatic, scenarios, the levator scap may not be strong enough to keep the shoulder blade where it’s supposed to be for good head on neck posture. Instead, it may become overstretched.
And the situation may be made worse if you slouch, you don’t have lumbar support, and/or your desk or steering wheel is either too high or too low, which may force the shoulder blade into an either upward or downward position.
And a few sessions with a physical therapist may be enough to get you back on track.
In that case, treatment might consist of working on muscle strength and flexibility for the levator scapula, as well as the other shoulder, neck, and upper back muscles, plus developing better posture habits.
Physical therapy may help you reduce the degree of stress that is placed on the levator. Stretching, strengthening and posture lessons may also help reduce pain, increase physical functioning of the upper body and, in general, improve your quality of life.
