Author:
Teräväinen Heikki,Tsui Joseph K.C.,Mak Edwin,Calne Donald B.
Abstract
ABSTRACT:We assessed parkinsonian rigidity objectively at the wrist to determine the optimal angular velocity and displacement for detecting abnormality. The wrist was moved passively with a torque motor and the average work done for one complete cycle was computed. This objective rigidity score (ORS) was compared with a clinical rigidity score (CRS). ORS was more pronounced at faster movement velocities in parkinsonian patients, whereas in normal subjects there was only a modest increase in the score. Angular velocities of 140 to 190 degrees/second and displacements of ±25 to ±30 degrees were most sensitive for detecting parkinsonian rigidity and had good correlation with the CRS.
Publisher
Cambridge University Press (CUP)
Subject
Neurology (clinical),Neurology,General Medicine
Cited by
43 articles.
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