07/11/2022
BACK, PELVIC, HIP OR LEG PAIN?
BREATHING PROBLEMS?
POSTURAL PROBLEMS?
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BACK ERECTOR MUSCLES
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[ANATOMY, FUNCTION AND MYOFASCIAL TREATMENT]
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The muscles of the back can be divided into three groups – superficial, intermediate and intrinsic:
➡️Superficial – associated with movements of the shoulder.
➡️Intermediate – associated with movements of the thoracic cage.
➡️Deep – associated with movements of the vertebral column. The deep muscles develop embryologically in the back, and are thus described as ➡️INTRINSIC muscles.
The deep muscles of the back are well-developed, and collectively extend from the sacrum to the base of the skull. They are associated with the movements of the vertebral column, and the control of posture. Anatomically, the deep back muscles can be divided into three layers: superficial, intermediate and deep.
The superficial muscles are also known as the spinotransversales. There are two muscles in this group: splenius capitis and splenius cervicis.
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There are three intermediate intrinsic back muscles: the iliocostalis, longissimus and spinalis. Together these muscles form a column, known as the erector spinae. The erector spinae is situated posterolaterally to spinal column, between the vertebral spinous processes and the costal angle of the ribs.
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All three muscles can be subdivided by their superior attachments, into: lumborum, thoracic, cervicis and capitis.
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The deep intrinsic muscles are located underneath the erector spinae. They are a group of short muscles, associated with the transverse and spinous processes of the vertebral column. There are three major muscles in this group: the semispinalis, multifidus and rotatores.
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The low back erectors tend to do too much which leads to stiffness and trigger points. That's why it is very important to apply a proper myofascial treatment on these structures. I usually use my hands, elbows and 2 devices: the Small Bevelled-Tip T-BAR which you can see in pics and the Blackroll® ReleaZer (next post).
Credit: Sports Physiotherapy Stefan Duell
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