H.I.O. / Toggle

Toggle Chiropractic technique (also known as "Hole In One") is one of the most researched chiropractic techniques in the world.  The technique uses high velocity and low force.  An adjusting table with a special "drop" piece is often used to facilitate the procedure.  The chiropractor focuses attention primarily on the Atlas (the highest neck bone) and the Axis (the bone beneath it).  The adjustment is quick and painless.

Much of the research done in this area was carried out by BJ Palmer, the developer of chiropractic.

The images below are a drawing and an x-ray showing the atlas and axis, the first and second vertebrae of the spine.  The atlas is the primary focus for the H.I.O. / Toggle adjustment.