This article is an overview of recent cranial research. Issues of importance are:
Researchers cannot agree on why cranial works Some say it is soft tissue changes, some say fluid flow, and some say it is mechanical. They just know it works. (I think it is all of them!)
It has been decided that there are multiple rhythms that constitute the CRI or cranial rhythmic impulse. These rhythms are a combination of lymph, artery or venous pulsation, respiration and cerebrospinal fluid flow. ((We also agree with this one as well).
Conclusion: It is hard to know which rhythm to follow when treating the skull because there are MULTIPLE rhythms. That is why we teach to look at component motions! Research Gate, May 2018