Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
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.
hypermobility/hy·per·mo·bil·i·ty/ (-mo-bil´ĭ-te) greater than normal range of motion in a joint.hypermo´bile
Etymology: Gk, hyper, L, mobilis, movable
an abnormally wide range of movement of the joints. The condition is seen in children and may be associated with Marfan's syndrome.
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.
Unusual flexibility of the joints, allowing them to be bent or moved beyond their normal range of motion.
hypermobilityexcessive movement at a joint, which potentially leads to instability. This is as a result of changes to connective tissue, particularly collagen, which results in laxity of the supporting structures such as ligaments and tendons. There is a spectrum from the more serious, often genetic, conditions to the more common, which cause fewer problems but nevertheless increase the risk of injury. Hypermobility is assessed by the Beighton Score, which measures the degree of abnormal movement at the lower back, knees, elbows and hands. The higher the score (maximum 9), the more hypermobile an individual is. See also flexibility.
n condition in which ligaments are loose; a click may be heard when the joint moves through a reasonable range of motion.
excessive mobility, as of a joint.