What Causes the Sound of an Adjustment?

What Causes the Sound of an Adjustment?

Actually, not all adjusting techniques produce the sound associated with “popping knuckles.” Some create no sound at all. Many techniques, however, do create the sound of a spinal “release.” According to the findings of a British research team that took x-rays of people “popping” their knuckles, the sound is caused by gas rushing in to fill the partial vacuum created when the joints are slightly separated. The desire to pop or “crack” your neck or back is caused by tension from a jammed or fixed vertebra which causes another part of the spine to compensate by moving too much and “popping” a lot.