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.
Pelvic organ prolapse (POP) is mainly caused by  obstetrics trauma. When a patient has a vaginal delivery, this can cause tearing of the connecting tissue of the pelvic floor which would then subsequently cause a weakness or hernia and then pelvic organ prolapse (POP).