A practical method for the detection of freezing of gait in patients with Parkinson’s disease

Yuri Kwon, Sang Hoon Park, Ji Won Kim, Yeji Ho, Hyeong Min Jeon, Min Jung Bang, Gu In Jung, Seon Min Lee, Gwang Moon Eom, Seong Beom Koh, Jeong Whan Lee, Heung Seok Jeon

    Research output: Contribution to journalArticlepeer-review

    21 Citations (Scopus)

    Abstract

    Purpose: Freezing of gait (FOG), increasing the fall risk and limiting the quality of life, is common at the advanced stage of Parkinson’s disease, typically in old ages. A simple and unobtrusive FOG detection system with a small calculation load would make a fast presentation of on-demand cueing possible. The purpose of this study was to find a practical FOG detection system.

    Patients and methods: A sole-mounted sensor system was developed for an unobtrusive measurement of acceleration during gait. Twenty patients with Parkinson’s disease participated in this study. A simple and fast time-domain method for the FOG detection was suggested and compared with the conventional frequency-domain method. The parameters used in the FOG detection were optimized for each patient.

    Results: The calculation load was 1,154 times less in the time-domain method than the conventional method, and the FOG detection performance was comparable between the two domains (P=0.79) and depended on the window length (P<0.01) and dimension of sensor information (P=0.03).

    Conclusion: A minimally constraining sole-mounted sensor system was developed, and the suggested time-domain method showed comparable FOG detection performance to that of the conventional frequency-domain method. Three-dimensional sensor information and 3-4-second window length were desirable. The suggested system is expected to have more practical clinical applications.

    Original languageEnglish
    Pages (from-to)1709-1719
    Number of pages11
    JournalClinical Interventions in Aging
    Volume9
    DOIs
    Publication statusPublished - 2014 Oct 8

    Keywords

    • Acceleration
    • Detection system
    • Freezing of gait
    • Frequency-domain
    • Parkinson’s disease
    • Time-domain

    ASJC Scopus subject areas

    • Geriatrics and Gerontology

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