The normal range of neck flexion is 90 degrees, and the normal range of neck extension is 70 degrees. 7 Patients’ range of motion may be age-dependent, with older patients having a smaller range.

Shoulder pain can be a real pain, but what if the pain isn't what it seems? Sometimes shoulder pain isn't really about your ...

When defined as a reduction in neck strength >10% with neck flexion, McArdle sign is 100% specific for MS and has 65% sensitivity for a diagnosis of MS. McArdle sign may be used to facilitate an ...

Patients with tension-type headache have weaker neck extension muscles and a lower extension/flexion ratio than healthy controls, a case-control study shows.

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 ...