The semispinalis capitis is the largest muscle in the back of the neck — and the most overlooked cause of posterior neck pain. Learn how to assess, palpate, stretch, and massage it.
Muscles of the Lumbar Spine of the Trunk
Structural groups of muscles largely determine functional groups—that is, the structural location of a muscle largely determines its mover function.
Five Muscles of Sacroiliac Stabilization – Part 3 – Hamstrings
The connection between the hamstrings and the sacroiliac joint is through what is known as the superficial back line myofascial meridian/anatomy train. If the hamstrings are tight, their tension pulling force will be exerted through the sacrotuberous ligament and onto the sacrum.
Other Unusual Suspects
Semispinalis capitis, pectineus, & vastus lateralis are unusual suspect muscles, often overlooked by manual therapists, that can cause pain and dysfunction.




