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.
Instead of surgery, you can stretch the tight side areas and retrain the weak ones, so the kneecap slides normally instead of grinding sideways in its channel. Stopping causes stops need for surgery, or even bracing and pain pills. The knees heal and you go back to all you want to do, using the new healthy mechanics.