How Chiropractic works
Chiropractic involves minor movements or adjustments of vertebrae in the spine. These adjustments occur when chiropractors use their hands or an instrument to apply pressure to move vertebrae back into place. The movement is quick and is often without discomfort, although it may produce a sound like cracking knuckles.
The snap, crackle, pop of Chiropractic adjustments
The sound you may hear during an adjustment is called joint cavitation and it is simply the release of gases such as oxygen and nitrogen from the joint. The lubricant, called synovial fluid, found in every joint contains dissolved gases. During an adjustment, the joints are slightly separated to move into proper position. This separation releases the built-up pressure on the fluid and the gases create a “pop” similar to opening champagne. Not all patients “pop” and not all adjusting techniques produce the sound.