Thompson Terminal Point Technique is built around the research of Dr. Derifield of Detroit Michigan. Dr. Derifield noticed that the same adjustment on two patients with the same analysis did not always give the same results. As he gained more experience, he found that the answer lay in determining through analysis whether the subluxation was lower spine or cervical. Analysis of the patient's subluxations, using the Derifield Technique, depends upon a very accurate leg check. Dr.Derifield created a set of rules for checking the legs to determine the point of the subluxation in the pelvic and lumbar area. It was further determined that turning the head in certain ways helped to balance the legs. Later Dr. Niblo added testing various trigger points on the side of the short leg, and adjusting the anterior ischium, producing astonishing results. Using a Thompson terminal point table, which is especially designed for the Derifield technique, a special weighing mechanism in the terminal point table instantly weights the patient and adds only enough tension to hold the patient in the "up" position before the thrust is given.