Acupuncture needle manipulation gives rise to ‘needle grasp’, a biomechanical phenomenon characterized by an increase in the force necessary to pull the needle out of the tissue (pullout force). This study investigates the hypothesis that winding of connective tissue rather than contraction of muscle is the mechanism responsible for needle grasp.
Authors: HELENE M. LANGEVIN, DAVID L. CHURCHILL, JUNRU WU, GARY J. BADGER, JASON A. YANDOW, JAMES R. FOX, AND MARTIN H. KRAG
Published in: FASEB J. 2002 Jun;16(8):872-4. Epub 2002 Apr 10.