Rectus Femoris: Get it Straight!

As a hip flexor, it is an extremely important muscle, both functionally and dysfunctionally. When tight, its pull is exerted in closed-chain function with anterior tilt of the pelvis; excessive anterior tilt can then create excessive lumbar lordosis (a postural distortion pattern known as lower crossed syndrome), which often predisposes toward low back pain.

Obliquus Capitis Inferior – A Misnamed Muscle

The emphasis of this article is on the importance of the naming of muscles, highlighted by the fact that the obliquus capitis inferior (OCI) is misnamed. However, the OCI is an important muscle in its own right. Given the prevalence of locked-short musculature in the posterior neck, especially in the supoccipital (upper neck) region, the OCI is extremely important clinically.

tight neck extensor musculature can cause tension headaches

Tension Headaches

A tension headache is caused by excessive pulling force of tight muscles in the back of the neck that exert tension on their attachments on the head.

there are four types/locations of possible thoracic outlet syndrome seen here

Thoracic Outlet Syndrome

Thoracic outlet syndrome is a condition that causes compression of nerves and/or blood vessels where the thorax outlets into the upper extremity.