title: Limb-kinetic apraxia in Parkinson disease.
abstract: 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.
authors.affiliation: Department of Neurology, University of Florida College of Medicine, Center for Neuropsychological Studies, Gainesville, FL 32610, USA.
authors.forename: K
authors.initials: K
authors.lastname: Quencer
authors.forename: M S
authors.initials: MS
authors.lastname: Okun
authors.forename: G
authors.initials: G
authors.lastname: Crucian
authors.forename: H H
authors.initials: HH
authors.lastname: Fernandez
authors.forename: F
authors.initials: F
authors.lastname: Skidmore
authors.forename: K M
authors.initials: KM
authors.lastname: Heilman
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D020240:Apraxia, Ideomotor / Q000175:diagnosis / Q000503:physiopathology*; D015984:Causality; D006801:Humans; D008297:Male; D008875:Middle Aged; D009048:Motor Skills; D009069:Movement Disorders / Q000175:diagnosis / Q000503:physiopathology*; D010300:Parkinson Disease / Q000175:diagnosis / Q000503:physiopathology*; D013647:Task Performance and Analysis