Four Year $2.8M Grant Funds Study of Effects of Chiropractic Treatment for Neck Pain

A $2.8 million grant is funding the study, now in progress, combining the efforts of medical doctors, chiropractors, biomechanists and clinical researchers, to document the effects of the Cox distraction chiropractic procedure on neck pain. The study will be funded through May 30, 2012.

Online PR News – 24-June-2010 – – In a ground-breaking study, medical and chiropractic researchers are joining efforts to study the effects of a form of non-surgical treatment for neck pain, more specifically Cox distraction manipulation. This study is one of three projects that are part of a four-year, $2.8 million grant awarded in 2008 to the Palmer Center for Chiropractic Research (PCCR), headquartered on the Palmer College of Chiropractic campus in Davenport, Iowa. The grant is from the National Institutes of Health (NIH) National Center for Complementary and Alternative Medicine to establish a multidisciplinary Developmental Center for Clinical and Translational Science in Chiropractic, and the principal investigator is Christine Goertz, D.C., Ph.D., who also serves as Palmer’s vice chancellor for Research and Health Policy. Co-leaders of the Cox distraction manipulation project are M. Ram Gudavalli, Ph.D., PCCR, and Avinash G. Patwardhan, Ph.D., Loyola University Stritch School of Medicine and Edward Hines Jr. Veterans Affairs Hospital.

This study is in progress and funded through May 30, 2012. It combines the efforts of medical doctors, chiropractors, biomechanists and clinical researchers, in order to document the effects of the Cox distraction chiropractic procedure on neck pain and develop sham and active treatment parameters for conducting clinical studies.

The project, titled Cervical Distraction Sham Development: Translating from Basic to Clinical Studies, consists of three main parts. After completing the pilot studies, the formal basic research study began in March 2010 on the Cox distraction procedure for neck pain at Edward Hines VA Hospital and Loyola University Stritch School of Medicine. This study is a collaborative effort between researchers at these facilities, researchers from Palmer College of Chiropractic, clinicians who perform this technique in their practices including Chicago chiropractor Dr. Ralph Kruse, and Dr. James Cox, the originator of the procedure.

“As the manipulation procedure is performed, we are measuring the variability between four different clinicians trained in this procedure by measuring the loads and the controlled displacements of the table using a basic science approach as well as a clinical approach,” said Dr. Gudavalli from Palmer. “According to practicing doctors of chiropractic, this chiropractic procedure has provided relief for musculoskeletal conditions such as neck pain. However, there is a need for studies that provide information on the biomechanical characterization of such therapies, the biomechanics of normal and pathological joint and muscle systems, and the development of new technologies that study such biomechanics in real time. In other words, what physiological effect does the procedure have that is responsible for its clinical successes?”

The results of this study will aid in the planning and development of controlled procedures in the clinical setting, and test the validity of delivering the controlled procedures by conducting clinical studies and obtaining patients’ perception on the controlled intervention. This knowledge has the potential to guide the future conduct of clinical research in this area and impact training of students and doctors in the chiropractic profession.

For more information about this study and/or the Cox procedure, contact Dr. Kruse by emailing him at or stopping by his website at You can also visit the websites of Lori Leipold, Media Relations at Palmer College of Chiropractic (, and Dr. James Cox (


About Chiropractic Care, Ltd.: The mission statement for Chiropractic Care, Ltd., located in south suburban Homewood, and Chiropractic Care Millennium Park in Chicago, is to help you achieve and maintain optimal health through natural chiropractic care. All symptoms are treated with gentle, effective, and drug-free therapies. Dr. Kruse is a Board Certified Chiropractic Physician, Chiropractic Orthopedist, Acupuncturist, and Cox Flexion-distraction practitioner and instructor who has been in private practice for over 20 years. He is a Fellow of the American Chiropractic Orthopedists and a Member of the American Pregnancy Association.

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