The Butterfly Test: Completing the Story of Cervical Function
28 Jan 2025 · 0 min

0:16
YouTube video by Jeff Langmaid (uploaded Jan 28, 2025) introducing the "butterfly test" as a functional assessment for the cervical spine. The speaker contrasts imaging (X‑rays) as showing only half the story and positions the butterfly test as ‘‘the other side’’—assessing how well an individual functions; the test is called by some "the signature of the neck."










