Visceral Manipulation was developed by French Osteopath, Jean-Pierre Barral. At optimal health, the relationship between the organs (viscera) and structures of the body (muscles, membranes, fasciae and bones) remains stable despite the body’s endless varieties of motion. But when one organ can’t move in harmony with its surrounding viscera due to abnormal tone, adhesions or displacement, it works against all the body’s organs and structures. This disharmony creates fixed, abnormal points of tension that the body is forced to move around. That chronic irritation, in turn, paves the way for disease and dysfunction.
Visceral Manipulation (VM) is a gentle hands-on therapy that works through the body’s visceral system (the heart, liver, intestines and other internal organs) to locate and alleviate these abnormal points of tension throughout the body.

http://www.iahe.com/html/therapies/vm.jsp