Parkinson's Disease Research Today is a free monthly online journal that collates and summarizes the latest research about Parkinson's Disease, including details on symptoms, treatment, genetics, medication.

Limb-kinetic apraxia in Parkinson disease.

Quencer K, Okun MS, Crucian G, Fernandez HH, Skidmore F, Heilman KM

Department of Neurology, University of Florida College of Medicine, Center for Neuropsychological Studies, Gainesville, FL 32610, USA.

To learn if limb-kinetic apraxia (LKA) is associated with Parkinson disease (PD), participants with PD (on medications) and control subjects performed finger tapping (FT), measuring movement speed, and performed coin rotation (CR), measuring precise coordinated but independent finger movements and speed. There were no group differences in FT, a measure of bradykinesia-rigidity, but CR rotation was impaired in PD. Thus, LKA, not related to bradykinesia-rigidity, is associated with PD.

Published 9 January 2007 in Neurology, 68(2): 150-1.
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