Optimal indices for testing parkinsonian rigidity.
Identifieur interne : 002004 ( Ncbi/Curation ); précédent : 002003; suivant : 002005Optimal indices for testing parkinsonian rigidity.
Auteurs : H. Ter V Inen [Canada] ; J K Tsui ; E. Mak ; D B CalneSource :
- The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques [ 0317-1671 ] ; 1989.
English descriptors
- KwdEn :
- MESH :
- complications : Parkinson Disease.
- etiology : Muscle Rigidity.
- physiopathology : Muscle Rigidity, Parkinson Disease.
- Adult, Aged, Humans, Middle Aged.
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.
PubMed: 2731084
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