A low-cost quantitative continuous measurement of movements in the extremities of people with Parkinson's disease

The assessment of Parkinson’s disease currently relies on the history of the present illness, the clinical interview, the physical examination, and structured instruments. Drawbacks to the use of clinical ratings include the reliance on real-time human vision to quantify small differences in motion...

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Main Authors: Gregory Neal McKay, Timothy P. Harrigan, James Robert Brašić
Format: Article
Language:English
Published: Elsevier 2019-01-01
Series:MethodsX
Online Access:http://www.sciencedirect.com/science/article/pii/S2215016118302206
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author Gregory Neal McKay
Timothy P. Harrigan
James Robert Brašić
author_facet Gregory Neal McKay
Timothy P. Harrigan
James Robert Brašić
author_sort Gregory Neal McKay
collection DOAJ
description The assessment of Parkinson’s disease currently relies on the history of the present illness, the clinical interview, the physical examination, and structured instruments. Drawbacks to the use of clinical ratings include the reliance on real-time human vision to quantify small differences in motion and significant inter-rater variability due to inherent subjectivity in scoring the procedures. Rating tools are semi-quantitative by design, however, in addition to significant inter-rater variability, there is inherent subjectivity in administering these tools, which are not blinded in clinical settings. Sophisticated systems to quantify movements are too costly to be used by some providers with limited resources. A simple procedure is described to obtain continuous quantitative measurements of movements of people with Parkinson’s disease for objective analysis and correlation with visual observation of the movements. • Inexpensive accelerometers are attached to the upper and lower extremities of patients with Parkinson’s disease and related conditions to generate a continuous, three-dimensional recorded representation of movements occurring while performing tasks to characterize the deficits of Parkinson’s disease. • Movements of the procedure are rated by trained examiners live in real-time and later by videotapes. • The output of the instrumentation can be conveyed to experts for interpretation for diagnostic and therapeutic purposes. Method name: Quantitative continuous movement measurement space, Keywords: Accelerometer, Instrumentation, Signal processing
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spelling doaj.art-0211369b9375464996f104a5076f5ecc2022-12-21T18:24:55ZengElsevierMethodsX2215-01612019-01-016169189A low-cost quantitative continuous measurement of movements in the extremities of people with Parkinson's diseaseGregory Neal McKay0Timothy P. Harrigan1James Robert Brašić2Johns Hopkins University, Baltimore, MD, United StatesJohns Hopkins University, Baltimore, MD, United StatesCorresponding author.; Johns Hopkins University, Baltimore, MD, United StatesThe assessment of Parkinson’s disease currently relies on the history of the present illness, the clinical interview, the physical examination, and structured instruments. Drawbacks to the use of clinical ratings include the reliance on real-time human vision to quantify small differences in motion and significant inter-rater variability due to inherent subjectivity in scoring the procedures. Rating tools are semi-quantitative by design, however, in addition to significant inter-rater variability, there is inherent subjectivity in administering these tools, which are not blinded in clinical settings. Sophisticated systems to quantify movements are too costly to be used by some providers with limited resources. A simple procedure is described to obtain continuous quantitative measurements of movements of people with Parkinson’s disease for objective analysis and correlation with visual observation of the movements. • Inexpensive accelerometers are attached to the upper and lower extremities of patients with Parkinson’s disease and related conditions to generate a continuous, three-dimensional recorded representation of movements occurring while performing tasks to characterize the deficits of Parkinson’s disease. • Movements of the procedure are rated by trained examiners live in real-time and later by videotapes. • The output of the instrumentation can be conveyed to experts for interpretation for diagnostic and therapeutic purposes. Method name: Quantitative continuous movement measurement space, Keywords: Accelerometer, Instrumentation, Signal processinghttp://www.sciencedirect.com/science/article/pii/S2215016118302206
spellingShingle Gregory Neal McKay
Timothy P. Harrigan
James Robert Brašić
A low-cost quantitative continuous measurement of movements in the extremities of people with Parkinson's disease
MethodsX
title A low-cost quantitative continuous measurement of movements in the extremities of people with Parkinson's disease
title_full A low-cost quantitative continuous measurement of movements in the extremities of people with Parkinson's disease
title_fullStr A low-cost quantitative continuous measurement of movements in the extremities of people with Parkinson's disease
title_full_unstemmed A low-cost quantitative continuous measurement of movements in the extremities of people with Parkinson's disease
title_short A low-cost quantitative continuous measurement of movements in the extremities of people with Parkinson's disease
title_sort low cost quantitative continuous measurement of movements in the extremities of people with parkinson s disease
url http://www.sciencedirect.com/science/article/pii/S2215016118302206
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