erector spinae muscles


Also found in: Wikipedia.

e·rec·tor spi·nae mus·cles

, erector muscle of spine (ĕ-rek'tŏr spī'nē mŭs'ĕlz, mŭs'ĕl spīn)
Origin, from sacrum, ilium, and spines of lumbar vertebrae; it divides into three columns, iliocostalis muscle, longissimus muscle, and spinalis muscle, which insert into ribs and vertebrae with additional muscle slips joining the columns at successively higher levels; action, extends vertebral column; nerve supply, dorsal primary rami of spinal nerves.
Synonym(s): musculus erector spinae [TA] .
References in periodicals archive ?
To reduce tension on iliopsoas bachward through erector spinae muscles causes muscle fatigueness.
Kyphotic deformity develops at the site of the spinal dysraphism as a result of the lateralised erector spinae muscles becoming perverted flexors of the spine.
As cited above, EMG activities during abdominal bracing have been already reported for some of the trunk muscles, such as the rectus abdominis, external oblique, internal oblique, trans-versus abdominis, and erector spinae muscles (Allison et al.
Back extension: Working the erector spinae muscles of the lower back.
We compared electromyography (EMG) signals of the thoracic and lumbar erector spinae muscles between the entropy of the EMG signals and the power spectrum analysis.
Low back - the erector spinae muscles extend the back and aid in good posture.
Directly below the thoracolumbar fascia lie the tendons of the thoracic erector spinae muscles forming a broad thick aponeurosis that spans the lumbar region to gain attachment to the ilium, sacrum and lumbar and sacral spinous processes (Macintosh and Bogduk 1986) (Figures 1 and 2).
Low-back machine -- isolating the trunk extensor muscles to strengthen the erector spinae muscles that improve posture and the ability to sit on the edge of the bed or the commode.
Back pain is associated with weak abdominal and erector spinae muscles.
Based on the results of this study, using aEMG of erector spinae muscles in low resistance modified Biering-Sorensen tests may not be ideal when attempting to evaluate healthy subjects from those with mild chronic or recurrent low back pain.