Craniosacral Therapy - History

History

Cranial Osteopathy was originated by osteopath William Sutherland (1873–1954) in 1898–1900. While looking at a disarticulated skull, Sutherland was struck by the idea that the cranial sutures of the temporal bones where they meet the parietal bones were "beveled, like the gills of a fish, indicating articular mobility for a respiratory mechanism."

Sutherland hypothesised the dural membranes act as 'guy-wires' for the movement of the cranial bones, holding tension for the opposite motion. He used the term reciprocal tension membrane system (RTM) to describe the three Cartesian axes held in reciprocal tension, or tensegrity, creating the cyclic movement of inhalation and exhalation of the cranium. The RTM as described by Sutherland includes the spinal dura, with an attachment to the sacrum. After his hypothesis of the supposed cranial mechanism, Sutherland further hypothesised that the sacrum moves synchronously with the cranial bones. Sutherland began to teach this work to other osteopaths from about the 1930s, and continued to do so until his death. His work was largely rejected by the mainstream osteopathic profession as it challenged some of the closely held beliefs among practitioners of the time.

In the 1940s the American School of Osteopathy started a post-graduate course called 'Osteopathy in the Cranial Field' directed by Sutherland, and was followed by other schools. This new branch of practice became known as "cranial osteopathy". As this form of osteopathy began to spread Sutherland trained more teachers to meet the demand, notably Drs Viola Frymann, Edna Lay, Howard Lippincott, Anne Wales, Chester Handy and Rollin Becker.

From 1975 to 1983, osteopathic physician John E. Upledger and neurophysiologist and histologist Ernest W. Retzlaff worked at Michigan State University as clinical researchers and professors. They set up a team of anatomists, physiologists, biophysicists, and bioengineers to investigate the purported pulse and study further Sutherland's theory of cranial bone movement. Upledger and Retzlaff went on to publish their results, which they interpreted as support for both the concept of cranial bone movement and the concept of a cranial rhythm. Later reviews of these studies have concluded that their research is of insufficient quality to provide conclusive proof for the effectiveness of craniosacral therapy and the existence of cranial bone movement.

Upledger developed his own treatment style, and when he started to teach his work to a group of students who were not osteopaths he generated the term 'Craniosacral therapy', based on the corresponding movement between cranium and sacrum.