The method of delivering chest compressions remains the same, as does the rate (at least 100 per minute). It is hoped that the use of compression-only delivery will increase the chances of the lay public delivering CPR.
Much like when crack your knuckles, loud popping noises from your knees are most likely caused by what is called cavitation. Cavitation results from a change in joint pressure that allows carbon dioxide, which is normally dissolved in your joint fluidâa.k.a.
There a certain fluid in your joints that when you make a certain movement, releases pressure, and creates bubbles that pop. usually, you can only crack a joint every thirty minutes, because the fluid has to to reform. My knees crack continuously due to a certain syndrome.