Dr. Stuart Rubin is a doctor of chiropractic medicine and a licensed Applied Kinesiologist. Applied Kinesiology (AK) is a form of diagnosis using muscle testing as a primary feedback mechanism to examine how a person's body is functioning. In general, the Applied Kinesiologist finds the muscle that tests weak, and then determines why that muscle is not functioning properly. The practitioner will evaluate and apply the therapy that will best eliminate the muscle weakness and help the patient.