Medication status and dual-tasking on turning strategies in Parkinson disease

AbstractBackgroundParkinson disease (PD) patients have turning impairments that may increase fall risk. Clinics lack specialized kinematic equipment used in gait and turn analysis and require a simple method to evaluate fall risk and advise patients in turning strategy selection. ObjectivesTo enhanc...

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Bibliographic Details
Published in:Journal of the neurological sciences 2019-01, Vol.396, p.206-212
Main Authors: Adamson, M.B, Gilmore, G, Stratton, T.W, Baktash, N, Jog, M.S
Format: Article
Language:English
Subjects:
Dual-tasking
Gait
Medication state
Motor control
Movement disorders
Neurology
Parkinson disease
Turning strategies
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Summary:AbstractBackgroundParkinson disease (PD) patients have turning impairments that may increase fall risk. Clinics lack specialized kinematic equipment used in gait and turn analysis and require a simple method to evaluate fall risk and advise patients in turning strategy selection. ObjectivesTo enhance understanding of PD turning strategies and determine if turning can be assessed using a video-recording and categorization method, we compared 180-degree and 90-degree turns as a function of medication status and dual-tasking (DT). Methods21 PD participants (H&Y stage 1–3) in PD-ON and PD-OFF medication states and 16 controls completed 180-degree and 90-degree turn-tasks with and without DT. Video-recordings of tasks permitted classification of 180-degree turns into Few-Step turns (FST) vs. Multi-Step turns (MST) and 90-degree turns into Step vs. Spin-turns. FST were further sub-classified into Twisting vs. Sideways turns and MST into Backward, Festination, Forward or Wheeling turns. Percentages of subtypes were analyzed across groups by task. ResultsIN 180-degree tasks, there was an effect of group: FST vs. MST F(2,55) = 9.578, p 
ISSN:0022-510X
1878-5883
DOI:10.1016/j.jns.2018.11.028