• M Vokaer, N Abou Azar, and de BeylD ZegersDZ.
• Service de Neurologie, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium. mvokaer@ulb.ac.be
• J. Neurol. Neurosurg. Psychiatr. 2003 Sep 1; 74 (9): 1304-7.

BackgroundMost clinicians rely on clinical scales such as the unified Parkinson's disease rating scale (UDPRS) for evaluating parkinsonian patients and assessing their response to levodopa. Gait analysis is not commonly used, probably because of the equipment required and the time needed. Few data have been published on the relations between gait variables and measures of arm and hand mobility.ObjectivesTo evaluate the correlation between dopa induced gait improvement and upper limb motor improvement using a rapid and simple method; and to evaluate the correlation between gait improvement and UPDRS III improvement.MethodsA finger tapping test and a simple walking test were used to measure the OFF-ON variations of upper limb motor function and gait in 23 patients with Parkinson's disease. The UPDRS motor score and the Hoehn and Yahr stage were measured in the OFF and the ON state.ResultsThere was no correlation between OFF-ON variation of the number of hits with the finger tapping test and OFF-ON variation in the gait variables. OFF-ON variation in the UPDRS motor score was not correlated with OFF-ON variation in the gait variables.ConclusionsThere was a dissociation between the effect of levodopa on upper limb and gait. The findings suggest that simple measures like the finger tapping test and a walking test should be included in the usual evaluation of patients with Parkinson's disease.

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