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Increased range of movement of joints, and joint laxity, occurring normally in children and adolescents or as a result of disease, for example, Marfan or Ehlers-Danlos syndrome.
Farlex Partner Medical Dictionary © Farlex 2012
hypermobilityInstability Orthopedics Any motion occurring in a joint in response to the reactive force of gravity at a time when that joint should be stable under such a load; hypermobility is often misused to describe extra movement as seen in a contortionist.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
Unusual flexibility of the joints, allowing them to be bent or moved beyond their normal range of motion.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.