Four of the most common causes of tight muscles of the low back (or anywhere in the body) are: overuse, splinting, adaptive shortening, and overstretching.
Structural groups of muscles largely determine functional groups—that is, the structural location of a muscle largely determines its mover function.
Motions of the Joints of the Pelvis This blog post article is an overview of the motions of the joints of the pelvis: the paired left and right sacroiliac joints and the symphysis pubis joint. For more complete coverage of …
In the lumbar spine, three joints are located between each two adjacent vertebrae: one disc joint and two paired (left and right) facet joints.
The low back is defined by the lumbar spine, composed of 5 vertebrae, named L1-L5. The pelvis is defined by the bones of the pelvic girdle.
The major function of the gluteus medius is its “reverse” closed-chain action of pelvic depression at the hip joint to stabilize the pelvis when walking.
Note: This is the third blog post article in a series of 11 articles on Psoas Major Function. See below for the other articles in this series on psoas major function. The hip joint is a triaxial joint that allows …
There is an old saying that no posture is bad unless you get stuck in it. The problem is that the thoracic spine often does get stuck in bad posture.
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