Dysmetria
Pronunciation: dis-MEE-tree-ah
Inability to control the distance, speed, and range of motion during voluntary muscle movements.
Full Definition
Dysmetria is a neurological condition characterized by the inability to judge and control the distance, speed, and range of voluntary movements. This results in overshooting or undershooting targets during reaching tasks. Dysmetria is commonly seen in patients with cerebellar dysfunction, such as those recovering from stroke, traumatic brain injury, or multiple sclerosis. In rehabilitation settings, occupational and physical therapists work to improve motor control through repetitive, targeted exercises and adaptive strategies.
Usage
Usage note: Part of the broader category of ataxic movements; often tested clinically with finger-to-nose examinations.
In Context
- "The patient exhibited significant dysmetria during finger-to-nose testing." — Neurological assessment
- "Cerebellar dysmetria interfered with the patient's ability to perform precise reaching tasks." — Occupational therapy evaluation