Comparison of Reliability, Validity, and Responsiveness of the Mini-BESTest and Berg Balance Scale in Patients With Balance Disorders
Marco Godi,Franco Franchignoni,Marco Caligari,Andrea Giordano,Anna Maria Turcato,Antonio Nardone +5 more
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TLDR
The Mini-BESTest appears to have a lower ceiling effect, slightly higher reliability levels, and greater accuracy in classifying individual patients who show significant improvement in balance function.Abstract:
Background Recently, a new tool for assessing dynamic balance impairments has been presented: the 14-item Mini-BESTest.
Objective Aim of this study was to compare the psychometric performance of Mini-BESTest vs. Berg Balance Scale (BBS).
Methods Ninety-three subjects (mean age 66.2; 53 females) with balance deficits were recruited. Interrater (3 raters) and test-retest (1-3 days) reliability were calculated using intraclass correlation coefficients (ICCs). Responsiveness and minimal important change (MIC) were assessed (after 10 sessions of physical therapy) using both distribution-based and anchor-based methods (external criterion: a 15-point Global Rating of Change [GRC] scale).
Results At baseline, neither floor nor ceiling effects were found in either scale. After treatment, the maximum score was found in 12 patients (12.9%) with BBS and in 2 (2.1%) with Mini-BESTest. Test-retest reliability for total scores was significantly higher in Mini-BESTest (ICC=0.96) than in BBS (ICC=0.92), whereas interrater reliability was similar (ICC=0.98 vs. 0.97). The standard error of measurement (SEM) was 1.26 and minimum detectable change at the 95% confidence level (MDC95) 3.5 points for Mini-BESTest, whereas SEM was 2.18 and MDC95 6.2 points for BBS. In receiver operating characteristic (ROC) curves, the area under the curve was 0.92 for Mini-BESTest and 0.91 for BBS. The best Minimal Important Change (MIC) was 4 points for Mini-BESTest and 7 for BBS. After treatment, 38 patients at Mini-BESTest vs. only 23 at BBS (out of the 40 subjects who had a GRC ≥3.5) showed a score change equal or greater than MICs.
Conclusions The two scales behave similarly, but the Mini-BESTest scale seems to have a lesser ceiling effect, slightly higher reliability levels, and greater accuracy in classifying individual patients who show significant improvement in balance function.read more
Citations
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Psychometric Properties of the Mini-Balance Evaluation Systems Test (Mini-BESTest) in Community-Dwelling Individuals With Chronic Stroke
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Age-related differences in time-limit performance and force platform-based balance measures during one-leg stance
Rubens Alexandre da Silva,Martin Bilodeau,Rodolfo Borges Parreira,Denilson de Castro Teixeira,Denilson de Castro Teixeira,César Ferreira Amorim +5 more
TL;DR: The test-retest reliability and sensitivity to group differences regarding the time-limit (TLimit) of one-leg standing and selected balance parameters obtained with a force platform in older and young adults were found to be acceptable and sensitive to differences in balance performance between older andYoung adults.
References
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Functional gait assessment and balance evaluation system test: reliability, validity, sensitivity, and specificity for identifying individuals with Parkinson disease who fall.
TL;DR: Both the Functional Gait Assessment and the Balance Evaluation Systems Test (BESTest) have reliability and validity for assessing balance in individuals with PD and the BESTest is most sensitive for identifying fallers.
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Journal ArticleDOI
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TL;DR: The Mini-BESTest has fewer than half of the items in the BESTest and takes only 15 minutes to complete, and has comparable-to-slightly greater discriminative properties for identifying fallers in individuals with Parkinson disease.