dysmetria /dys·me·tria/ (dis-me´tre-ah) disturbance of the power to control the range of movement in muscular action.
dysmetria
dysmetria (dismē´trē
),
dys·me·tri·a (d s-m  tr- , -m tr-)n. An inability or impaired ability to accurately control the range of movement in muscular acts. |
dysmetria
[dismē′trē·ə]
Etymology: Gk, dys + metron, measure
an abnormal condition that prevents the affected individual from properly measuring distances associated with muscular acts and from controlling muscular action. It is associated with cerebellar lesions and typically characterized by overestimating or underestimating the range of motion needed to place the limbs correctly during voluntary movement. A normal person with eyes closed can move the arms from a position of 90 degrees of flexion to a position over the head and then return them to the 90-degree position; a person with dysmetria is unable to perform this test accurately. See also hypermetria, hypometria.
dysmetria (dismē´trē
),n the loss of ability to gauge distance, speed, or power of movement associated with muscle function; e.g., the patient is unable to control the force of closure and strikes the opposite occluding teeth with greater vigor than necessary.
dysmetria
inability to properly direct or limit motions. A characteristic of cerebellar lesions.
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