A System for Real-Time Feedback to Improve Gait and Posture in Parkinson's Disease

IEEE Journal of Biomedical and Health Informatics
Jeremy JellishNarayanan Krishnamurthi

Abstract

For people with Parkinson's disease (PD), gait and postural impairments can significantly affect their ability to perform activities of daily living. Presentation of appropriate cues has been shown to improve gait in PD. Based on this, a treadmill-based system and experimental paradigm were developed to determine if people with PD can utilize real-time feedback (RTFB) of step length or back angle (uprightness) to improve gait and posture. Eleven subjects (mean age 67 ± 8 years) with mild-to-moderate PD (Hoehn and Yahr stage I-III) were evaluated regarding their ability to successfully utilize RTFB of back angle or step length during quiet standing and treadmill walking tasks during a single session in their medication-on state. Changes in back angle and step length due to feedback were compared using Friedman nonparametric tests with Wilcoxon Signed-Rank tests for post-hoc comparisons. Improvements in uprightness were observed as an increase in back angle during quiet standing (p = 0.005) and during treadmill walking (p = 0.005) with back angle feedback when compared to corresponding tasks without feedback. Improvements in gait were also observed as an increase in step length (p = 0.005) during step length feedback compared to ...Continue Reading

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Citations

Jun 6, 2019·Annual Review of Biomedical Engineering·Mariana H G MonjeÁlvaro Sánchez-Ferro
Dec 15, 2019·Sensors·Niveditha MuthukrishnanNarayanan Krishnamurthi
Nov 14, 2020·Sensors·Niveditha MuthukrishnanNarayanan Krishnamurthi

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