So, why do Chiropractors crack your back? While it is thought that the force needed to ‘crack’ a joint is typically great enough to damage a hard surface, such as bone, studies have shown that bone cracking has no long-term negative health effects. Lead author of the study, Greg Kawchuk, a professor in the Faculty of Rehabilitation Medicine, stated that the ability to crack your knuckles could be an indicator of joint health. They wanted to know why some people can crack their knuckles when others can’t, and if there were any long-term effects from doing so. The above video was created by the University of Alberta when they were studying joints clicking and popping. It then takes a while for the fluid to settle back into place, which is why your joints can’t be cracked again immediately afterwards. When they are prised apart the vacuum is broken, which creates an audible popping noise. These planes of glass are held together with a vacuum. One theory on crepitus suggests that air pressure within the joint is suddenly altered when the joint is cracked, resulting in the formation or collapse of an air cavity in the synovial fluid that produces a popping sound.‘Ī very pleasant video of this can be seen below:Įssentially, imagine two planes of glass with fine layer of liquid between them.
‘ Cavitation: Surrounding each facet joint is a capsule of liquid, called synovial fluid, that lubricates the joints and allows for smooth, comfortable movements. One, which is corroborated by the above mentioned study, is: To why your joints crack when put under some form of stress. Oddly enough, there isn’t a definite answer on this, thoughĪ recent study may have given us a better idea. Well, before we can answer the first question, we need toĪnswer the second one. Regardless of which camp you fall into – the pleasure and relief felt by the patient is often evident.īut why do we do it? And what exactly is that noise? Some recoil in horror, but others find the With a well-dressed man holding random limbs akimbo, a sudden jolt and then the We’ve all seen the videos, a patient laid out on a table
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