What's that popping sound?

What’s That Popping Sound?

Synovial fluid in our joints contains oxygen, nitrogen, and carbon dioxide gases. When a joint is adjusted the joint capsule is stretched and the joint volume is increased as much as 15-20%. This creates a partial vacuum and the gas rapidly releases due to the pressure change. This rapid gas release is where the ‘pop’ comes from.

Why is the 1st adjustment So Loud?

The joint capsule volume change is typically greatest on the 1st adjustment, as it has never been adjusted and will likely have tighter muscles and more adhesions (scar tissue) around the joint. The sound on subsequent adjustments SHOULD begin to lessen. This is a good indicator that the joint is moving more efficiently.