Title:
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Comparison and adaptation of step length and gait speed estimators from single belt worn accelerometer positioned on lateral side of the body
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Author:
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Sayeed, Taufique; Samà Monsonís, Albert; Català Mallofré, Andreu; Cabestany Moncusí, Joan
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial; Universitat Politècnica de Catalunya. GREC - Grup de Recerca en Enginyeria del Coneixement; Universitat Politècnica de Catalunya. AHA - Arquitectures Hardware Avançades |
Abstract:
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Parkinson’s Disease (PD) is a neurodegenerative
disease that predominantly alter patients’ motor performance and
compromises the speed, the automaticity and fluidity of natural
movements. The patients fluctuate between periods in which they
can move almost normally for some hours (ON state) and periods
with motor disorders (OFF state). Gait properties are affected by
the motor state of a patient: reduced stride length, reduced gait
speed, increased stride width etc. The ability to assess the motor
states (ON/OFF) on a continuous basis for long time without
disturbing the patients’ daily life activities is an important
component of PD management. An accurate report of motor states
could allow clinics to adjust the medication regimen to avoid OFF
periods. The real-time monitoring will also allow an online
treatment by combining, for instance, with automatic drugadministration
pump doses. Many studies have attempted to extract
gait properties through a belt-worn single tri-axial accelerometer.
In this paper, a user friendly position is proposed to place the
accelerometer and six step length estimators are compared
considering the proposed sensor placement in a preliminary
database of healthy volunteers. Adaptation methods to some of
these estimators are also proposed and compared. The comparison
shows that the adapted estimators improve the performance and
reduce errors in respect of the original methods applied in the new
sensor location. |
Subject(s):
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-Àrees temàtiques de la UPC::Ciències de la salut -Parkinson disease(PD) -step length -gait speed -anterior superior iliac spine (ASIS) -center of mass (COM) -Parkinson, Malaltia de |
Rights:
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Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Document type:
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Article - Published version Conference Object |
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