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Journal of the Korean Academy of Rehabilitation Medicine 1995;19(4):28.
Evaluation of Dysmetria Using a Digitizer
Jae-Wook Kim, M.D. , Kyoung-Moo Lee, M.D.
Department of Rehabilitation Medicine, Chungbuk National University College of Medicine
디지타이저를 이용한 운동거리이상의 평가
김재욱, 이경무
충북대학교 의과대학 재활의학교실

Dysmetria is one of the major findings in ataxic patients. To evaluate the dysmetria, clinical neurological examination or hand dextrity tests have been used. But we cannot get the quantitified data of dysmetria through these tests.

The purpose of this study was to evaluate dysmetria in ataxic patients quantitatively.

The subjects of this study were 9 ataxic patients and 10 neurologically healthy volunteers as control.

Drawing a straight line with the stylus on the digitizer, the course of the stylus was visualized on the PC monitor. Drawing time, deviated area, total numbers of turn, turn/sec, amplitude/turn, maximum deviation, and time to maximum deviation were calculated by PC.

Deviated area, amplitude/turn, maximum deviation, total numbers of turn, and turn/sec were highly correlated with the severity of dysmetria.

In conclusion, using a digitizer, it was possible to identify the severity of dysmetria quantitatively. Therefore, this test could be a useful tool in evaluating dysmetria and coordinated movements of upper extremities.

Key Words: Digitizer, Dysmetria, Digitizer, Ataxic patient


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