Cross-Cultural Adaptation and Psychometric Characteristics of the Greek Functional Gait Assessment Scale in Healthy Community-Dwelling Older Adults

Author:

Lampropoulou Sofia12ORCID,Kellari Anthi13,Gedikoglou Ingrid A.4,Kozonaki Danai Gagara1,Nika Polymnia1,Sakellari Vasiliki5ORCID

Affiliation:

1. Physiotherapy Program, Life and Health Sciences Department, University of Nicosia, P.O. Box 24005, Nicosia CY-1700, Cyprus

2. Physiotherapy Department, School of Health Rehabilitation Sciences, University of Patras, University Campus, 26504 Rio, Greece

3. Physiotherapy Department, School of Health Sciences, University of Thessaly, 35100 Lamia, Greece

4. Physiopoint, 16674 Athens, Greece

5. Physiotherapy Department, Faculty of Health and Care Sciences, University of West Attica, Agiou Spiridonos 28, Egaleo, 12243 Athens, Greece

Abstract

The Functional Gait Assessment (FGA) was cross-culturally adapted into Greek, according to international guidelines. The final Greek version of the scale (FGAGR) was evaluated for its reliability and was correlated with the mini-Balance Evaluation Systems Test (mini-BESTest), the Berg Balance Scale (BBS), the Timed Up and Go (TUG) test, and the Falls Efficacy Scale-International (FES-I) questionnaire, for testing the concurrent validity. The discriminant validity between individuals reporting low and those reporting high concern about falls as well as the predictive validity in identifying people with high risk of falls were assessed. The FGAGR was characterized as comprehensible in its content and orders. Psychometric testing in 24 Greek-speaking individuals (six men and eighteen women, 66 ± 7 years old) yielded excellent test-retest (ICC = 0.976) and inter-rater reliability (ICC = 0.984), but moderate internal consistency (Cronbach’s alpha = 0.660). The FGAGR scale proved its concurrent and discriminant validity while a maximum cutoff point of 25, with sensitivity of 84% and specificity of 100%, was identified to be optimal for predicting risk of falls in the elderly. The good psychometric characteristics of the FGAGR confirm its applicability in assessing gait of Greek-speaking older adults.

Publisher

MDPI AG

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