Scoring festination and gait freezing in people with Parkinson's: The freezing of gait severity tool-revised

Aileen E Scully; Dawn Tan; Beatriz Ito Ramos de Oliveira; Keith D Hill; Ross Clark; Yong Hao Pua

doi:10.1002/pri.2016

Back

Scoring festination and gait freezing in people with Parkinson's: The freezing of gait severity tool-revised

Journal article

Open access

Peer reviewed

Scoring festination and gait freezing in people with Parkinson's: The freezing of gait severity tool-revised

Aileen E Scully, Dawn Tan, Beatriz Ito Ramos de Oliveira, Keith D Hill, Ross Clark and Yong Hao Pua

Physiotherapy Research International, Vol.28(4), pp.1-10

2023

DOI: https://doi.org/10.1002/pri.2016

PMID: 37199289

Files and links (2)

pdf

Scoring festination and gait freezing in people with Parkinson's The freezing of gait severity tool-revised662.99 kBDownload View

Published VersionCC BY-NC-ND V4.0, Open Access

url

https://doi.org/10.1002/pri.2016View

Published Version

Abstract

Parkinson's disease

reliability

validity

freezing of gait

clinician-rated tool

Background and purpose: To improve existing clinical assessments for freezing of gait (FOG) severity, a new clinician-rated tool which integrates the varied types of freezing (FOG Severity Tool-Revised) was developed. This cross-sectional study investigated its validity and reliability. Methods: People with Parkinson's disease who were able to independently ambulate eight-metres and understand study instructions were consecutively recruited from outpatient clinics of a tertiary hospital. Those with co-morbidities severely affecting gait were excluded. Participants were assessed with the FOG Severity Tool-Revised, three functional performance tests, the FOG Questionnaire, and outcomes measuring anxiety, cognition, and disability. The FOG Severity Tool-Revised was repeated for test-retest reliability. Exploratory factor analysis and Cronbach's alpha were computed for structural validity and internal consistency. Reliability and measurement error were estimated with ICC (two-way, random), standard error of measurement, and smallest detectable change (SDC95 ). Criterion-related and construct validity were calculated with Spearman's correlations. Results: Thirty-nine participants were enrolled [79.5% (n = 31) male; Median (IQR): age-73.0 (9.0) years; disease duration-4.0 (5.8) years], with fifteen (38.5%) who reported no medication state change contributing a second assessment for reliability estimation. The FOG Severity Tool-Revised demonstrated sufficient structural validity and internal consistency (α = 0.89-0.93), and adequate criterion-related validity compared to the FOG Questionnaire (ρ = 0.73, 95% CI 0.54-0.85). Test-retest reliability (ICC = 0.96, 95%CI 0.86-0.99) and random measurement error (%SDC95 = 10.4%) was acceptable in this limited sample. Discussion and conclusions: The FOG Severity Tool-Revised appeared valid in this initial sample of people with Parkinson's. While its psychometric properties remain to be confirmed in a larger sample, it may be considered for use in the clinical setting.

Details

Title: Scoring festination and gait freezing in people with Parkinson's: The freezing of gait severity tool-revised
Authors: Aileen E Scully (Corresponding Author) - Curtin University
Dawn Tan (Author) - Singapore General Hospital
Beatriz Ito Ramos de Oliveira (Author) - Curtin University
Keith D Hill (Author) - Monash University
Ross Clark (Author) - University of the Sunshine Coast, Queensland, School of Health - Public Health
Yong Hao Pua (Author) - Duke-NUS Medical School
Publication details: Physiotherapy Research International, Vol.28(4), pp.1-10
Publisher: John Wiley & Sons Ltd.
Date published: 2023
DOI: 10.1002/pri.2016
ISSN: 1471-2865; 1358-2267
PMID: 37199289
Copyright note: This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivsLicense, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.© 2023 The Authors. Physiotherapy Research International published by John Wiley & Sons Ltd.
Grant note: Mitsui Sumitomo Insurance Welfare Foundation Australian government Research Training Program (RTP) stipend scholarship
Organisation Unit: University of the Sunshine Coast, Queensland; School of Health - Public Health
Language: English
Record Identifier: 99725895002621
Output Type: Journal article

Metrics

49 File views/ downloads

17 Record Views

5 Times Cited - Web of Science

InCites Highlights

These are selected metrics from InCites Benchmarking & Analytics tool, related to this output

Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Rehabilitation

UN Sustainable Development Goals (SDGs)

This output has contributed to the advancement of the following goals:

Source: InCites