Flexion or extension of a certain body part typically refers to joints. Flexing a joint usually means closing it, and decreasing the angle between the body parts, while extending a joint means opening ...

Neck flexion is the action of moving your chin down toward your chest. Even though it’s a simple motion, it’s possible to develop pain, tightness, and decreased mobility in this area. Causes may ...

An injury or medical condition can limit the flexibility in your neck, making it hard to do everyday activities like driving, working, and exercising. To decide how best to treat you, your doctor will ...

It appears that patients with tension-type headache (TTH) have relatively weak neck extension muscles, a new study shows. Researchers found that these patients are 26% weaker than controls with ...

A normal radiographic study of the cervical spine does not exclude the possibility of unstable ligamentous injury. This is a particularly difficult problem in patients with severe traumatic brain ...

Lawrence W. Schneider, David R. Foust, Bruce M. Bowman, Richard G. Snyder, Don B. Chaffin, Thomas A. Abdelnour, Janet K. Baum https://www.jstor.org/stable/44633649 ...