Test-retest reliability of the single leg stance on a Lafayette stability platform
Document Type
Article
Publication Date
1-1-2023
Abstract
The validity and reliability of the Lafayette stability platform are well-established for double leg testing. However, no evaluation of single leg (SL) stance on the platform was discovered yet. Therefore, this study aimed to investigate the reliability of conducting the SL stance on the Lafayette platform. Thirty-six healthy and active university students (age 23.2 & PLUSMN; 3.2 years; BMI 21.1 & PLUSMN; 3.1 kg/m(2)) were tested twice, one week apart (week 1; W1, week 2; W2). They stood on their dominant leg with eyes-open (EO) and eyes-closed (EC) in random order. Three successful trials of 20 seconds each were recorded. The duration during which the platform was maintained within 0 & DEG; of tilt was referred to as time in balance (TIB). At all-time points, TIB was consistently longer in EO (EOW1: 17.02 & PLUSMN; 1.04s; EOW2: 17.32 & PLUSMN; 1.03s) compared to EC (ECW1: 11.55 & PLUSMN; 1.73s; ECW2: 13.08 & PLUSMN; 1.82s). A & PLUSMN;10 seconds difference was demonstrated in the Bland-Altman analysis in both EO and EC. Lower standard error of measurement (SEM) and coefficient of variation (CV) indicated consistent output. High intraclass correlation coefficient (ICC) values were seen between weeks (EO = 0.74; EC = 0.76) and within weeks (EOW1 = 0.79; EOW2 = 0.86; ECW1 = 0.71; ECW2 = 0.71). Although statistical measures (i.e., SEM, CV, and ICC) indicated good reliability of Lafayette for SL tasks, the wide agreement interval is yet to be clinically meaningful. Factors underlying the wide variation need to be identified before Lafayette is used for TIB assessment.
Divisions
biomedengine,fac_med,Socialprevent,1234
Funders
Universiti Malaya, Malaysia through the Postgraduate Research Grants (GPF007C-2019) ; (GPF026A-2019)
Publication Title
PLoS ONE
Volume
18
Issue
1
Publisher
Public Library of Science
Publisher Location
1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA