Journal article
Validity and reliability of a new clinician-rated tool for freezing of gait severity
Disability and Rehabilitation, Vol.46(14), pp.3133-3140
2024
PMID: 37551868
Abstract
Purpose:
The Freezing of Gait Severity Tool (FOG Tool) was developed because of limitations in existing assessments. This cross-sectional study investigated its validity and reliability.
Methods:
People with Parkinson’s disease (PD) were recruited consecutively from clinics. Those who could not walk eight-metres independently (with or without an assistive device), comprehend instructions, or with co-morbidities affecting walking were excluded. Participants completed a set of assessments including the FOG Tool, Timed Up and Go (TUG), and Freezing of Gait Questionnaire. The FOG Tool was repeated and those reporting no medication state change evaluated for test-retest reliability. Validity and reliability were investigated through Spearman’s correlations and ICC (two-way, random). McNemar’s test was applied to compare the FOG Tool and TUG on the proportion of people with freezing.
Results:
Thirty-nine participants were recruited [79.5%(n = 31) male; Median(IQR): age–73.0(9.0) years; disease duration–4.0(5.8) years]. Fifteen (38.5%) contributed to test-retest reliability analyses. The FOG Tool demonstrated strongest associations with the Freezing of Gait Questionnaire (ρ = 0.67, 95%CI 0.43–0.83). Test-retest reliability was excellent (ICC = 0.96, 95%CI 0.88–0.99). The FOG Tool had 6.2 times the odds (95%CI 2.4–20.4, p < 0.001) of triggering freezing compared to the TUG.
Conclusions:
The FOG Tool appeared adequately valid and reliable in this small sample of people with PD. It was more successful in triggering freezing than the TUG.
Details
- Title
- Validity and reliability of a new clinician-rated tool for freezing of gait severity
- Authors
- Aileen Eugenia Scully (Author) - Curtin UniversityDawn May Leng Tan (Author) - Singapore General HospitalBeatriz IR de Oliveira (Author) - Curtin UniversityKeith David Hill (Author) - Monash UniversityRoss Clark (Author) - University of the Sunshine Coast, Queensland, School of Health - Public HealthYong Hao Pua (Author) - Singapore General Hospital
- Publication details
- Disability and Rehabilitation, Vol.46(14), pp.3133-3140
- Publisher
- Taylor & Francis
- Date published
- 2024
- DOI
- 10.1080/09638288.2023.2242257
- ISSN
- 1464-5165
- PMID
- 37551868
- Copyright note
- © 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built upon in any way. The terms on which this article has been published allow the posting of the Accepted Manuscript in a repository by the author(s) or with their consent.
- Organisation Unit
- School of Health - Biomedicine; Healthy Ageing Research Cluster; School of Science, Technology and Engineering; School of Health - Public Health
- Language
- English
- Record Identifier
- 99745582802621
- Output Type
- Journal article
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