Effect of Levodopa and Environmental Setting on Gait and Turning Digital Markers Related to Falls in People with Parkinson's Disease
Sponsor
This study was supported by the National Institutes of Health grants from National Institute of Aging (R44AG055388 and R43AG044863). OHSU, and V.V.S, J.M., M.E.G., K.S., and F.B.H. are employees of APDM Wearable Technologies-a Clario company that may have a commercial interest in the results of this research and technology. This potential conflict of interest has been reviewed and managed by Oregon Health & Science University. P.C.K., J.G.N., and M.M. have no potential conflicts to disclose.
Published In
Movement Disorders Clinical Practice
Document Type
Citation
Publication Date
11-4-2022
Abstract
Background It is unknown whether medication status (off and on levodopa) or laboratory versus home settings plays a role in discriminating fallers and non-fallers in people with Parkinson's disease (PD). Objectives To investigate which specific digital gait and turning measures, obtained with body-worn sensors, best discriminated fallers from non-fallers with PD in the clinic and during daily life. Methods We recruited 34 subjects with PD (17 fallers and 17 non-fallers based on the past 6 month's falls). Subjects wore three inertial sensors attached to both feet and the lumbar region in the laboratory for a 3-minute walking task (both off and on levodopa) and during daily life activities for a week. We derived 24 digital (18 gait and 6 turn) measures from the 3-minute walk and from daily life. Results In clinic, none of the gait and turning measures collected during on levodopa state were significantly different between fallers and non-fallers. In contrast, digital measures collected in the off levodopa state were significantly different between groups, (average turn velocity, average number of steps to complete a turn, and variability of gait speed, P < 0.03). During daily life, the variability of average turn velocity (P = 0.023) was significantly different in fallers than non-fallers. Last, the average number of steps to complete a turn was significantly correlated with the patient-reported outcomes. Conclusions Digital measures of turning, but not gait, were different in fallers compared to non-fallers with PD, in the laboratory when off medication and during a daily life.
Rights
© 2022 International Parkinson and Movement Disorder Society.
Locate the Document
DOI
10.1002/mdc3.13601
Persistent Identifier
https://archives.pdx.edu/ds/psu/39234
Citation Details
Shah, V.V., McNames, J., Carlson-Kuhta, P., Nutt, J.G., El-Gohary, M., Sowalsky, K., Mancini, M. and Horak, F.B. (2023), Effect of Levodopa and Environmental Setting on Gait and Turning Digital Markers Related to Falls in People with Parkinson's Disease. Mov Disord Clin Pract. https://doi.org/10.1002/mdc3.13601