Diversified Technique is the classic chiropractic technique, developed by D.D. Palmer, DC. and taught in all chiropractic colleges. Diversified Technique was refined and developed by the late Otto Reinert, DC, to address biomechanical failure in each section of the spine, as it relates to specific subluxation. The focus is on restoration to normal biomechanical function, and correction of subluxation. In addition, Diversified methods have been developed to adjust extremity joints, allowing for beneficial applications in treating sports injuries and other injuries. Diversified adjusting of the spine uses specific lines of drives for all manual thrusts, allowing for specificity in correcting mechanical distortions of the spine. X-rays and case histories are used in analysis and diagnosis. No instruments are used in the adjusting procedure. Motion palpatation and full spine, hands-on techniques are used to deliver a deeper thrust, which makes an osseous (popping) sound as the adjustment is given.
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.
Activator Methods is based on the postulate that understanding body mechanics and force is the key to understanding how to move bones. A leg test is utilized to tell the doctor if the subluxation exists, chiefly in the lumbo-sacral area or cervical region of the spine. With further research into body mechanics, W.C. Lee D.C. and A.W. Fuhr D.C. were able to analyze the body and produce from the analysis consistent changes using a light non-force specific chiropractic adjustment. Lee and Fuhr understood that force was not necessary to correct subluxations in the body. Two components are necessary for fast, effective reduction of nerve pressure caused by subluxations. They are speed and line of drive. Speed and line of drive are what make chiropractic the distinct and dynamic art and science that it is. The activator instrument was designed to deliver this specific dynamic thrust. It is a small hand-held gun-type mechanism that delivers a sharp percussive thrust upon triggering. The activator instrument controls the force and speed of the adjustment exceptionally well and with the activator, the line of drive can be more specific.