Research Mission Statement

To advance the knowledge and clinical application of the science, art, and philosophy of chiropractic with an emphasis on the Gonstead System of Chiropractic.

Roger R. Coleman, DC - GCSS Director of Research
Mark A. Lopes, DC - GCSS Research Committee Chair

Why Gonstead Chiropractic Research?

Chiropractic is an art and science and a philosophy of life and health. Each cornerstone of the triad must be studied and developed. The various Gonstead technique instructors are doing an excellent job of presenting and teaching the ART and PHILOSOPHY of chiropractic, particularly as it relates to the Gonstead System of Chiropractic.

One of the founding principles of the Gonstead Clinical Studies Society is to advance the SCIENCE of the Gonstead System of Chiropractic. To date, GCSS has published case reports and research detailing the technical aspects of the Gonstead technique and system of spinal analysis in peer-reviewed chiropractic journals and published proceedings, has written two textbooks, among other things.

Clinical science is not a fixed set of formulas. It is an ever-changing and evolving art and science. New advances in scientific knowledge and refinement of the clinical art require that the technique specifically, and chiropractic generally, assimilate that which is beneficial so that clinicians can help people with a variety of clinical presentations as well as advance the clinical models developed by Dr. Gonstead and the profession.

Gonstead Clinical Studies Society, a not-for-profit chiropractic organization, is dedicated to advancing the art, science, and philosophy of the Gonstead System of Chiropractic.

Gonstead Clinical Studies Society Research

A major cornerstone of GCSS is chiropractic research, primarily as it relates to all aspects of the Gonstead System of Chiropractic. To date, GCSS and its members have written two textbooks (Plaugher G (ed). Textbook of Clinical Chiropractic. Baltimore: Williams & Wilkins. 1993 and Anrig C, Plaugher G (eds). Pediatric Chiropractic. Baltimore: Williams & Wilkins.1997) which have been published through major medical publishers and have written numerous papers for conferences proceedings and articles for both peer-reviewed and non-peer-reviewed chiropractic journals, including the peer-reviewed and National Institutes of Health ( database Medline ( listed, Journal of Manipulative and Physiological Therapeutics (

Published Research

The GCSS Published Research list includes titles and abstracts. Most full articles are not posted. Use MEDLINE (PUBMED) the National Institute of Health’s database. Some chiropractic articles are not included in MEDLINE.

The GCSS research articles have been broken down into seven categories and are listed to the right. Click on a tab to view titles, abstracts and articles on each subject.

Research Resources

Pelvic Rotation Calculator App

We have developed the Pelvic Rotation Calculator App which is a program to calculate true measurements and rotation amounts using measurements taken from the radiograph and the x-ray positioning environment. It was developed as a non profit contribution by the Gonstead Clinical Studies Society Research Department. It is based on our article published in the Journal of Chiropractic Medicine which proposed a mathematical method to quantify Y-Axis pelvic rotation on the anteroposterior radiograph.

Click on the README document link and follow the directions to access the free Pelvic Rotation Calculator App