Physical therapy · 2013
Psychometric properties of the Mini-Balance Evaluation Systems Test (Mini-BESTest) in community-dwelling individuals with chronic stroke.
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Tsang Charlotte S L, Liao Lin-Rong, Chung Raymond C K, Pang Marco Y C
Аннотация
BACKGROUND: The Mini-Balance Evaluation Systems Test (Mini-BESTest) is a new balance assessment, but its psychometric properties have not been specifically tested in individuals with stroke.
OBJECTIVES: The purpose of this study was to examine the reliability and validity of the Mini-BESTest and its accuracy in categorizing people with stroke based on fall history.
DESIGN: An observational measurement study with a test-retest design was conducted.
METHODS: One hundred six people with chronic stroke were recruited. Intrarater reliability was evaluated by repeating the Mini-BESTest within 10 days by the same rater. The Mini-BESTest was administered by 2 independent raters to establish interrater reliability. Validity was assessed by correlating Mini-BESTest scores with scores of other balance measures (Berg Balance Scale, one-leg-standing, Functional Reach Test, and Timed "Up & Go" Test) in the stroke group and by comparing Mini-BESTest scores between the stroke group and 48 control participants, and between fallers (≥1 falls in the previous 12 months, n=25) and nonfallers (n=81) in the stroke group.
RESULTS: The Mini-BESTest had excellent internal consistency (Cronbach alpha=.89-.94), intrarater reliability (intraclass correlation coefficient [3,1]=.97), and interrater reliability (intraclass correlation coefficient [2,1]=.96). The minimal detectable change at 95% confidence interval was 3.0 points. The Mini-BESTest was strongly correlated with other balance measures. Significant differences in Mini-BESTest total scores were found between the stroke and control groups and between fallers and nonfallers in the stroke group. In terms of floor and ceiling effects, the Mini-BESTest was significantly less skewed than other balance measures, except for one-leg-standing on the nonparetic side. The Berg Balance Scale showed significantly better ability to identify fallers (positive likelihood ratio=2.6) than the Mini-BESTest (positive likelihood ratio=1.8).
LIMITATIONS: The results are generalizable only to people with mild to moderate chronic stroke.
CONCLUSIONS: The Mini-BESTest is a reliable and valid tool for evaluating balance in people with chronic stroke.
OBJECTIVES: The purpose of this study was to examine the reliability and validity of the Mini-BESTest and its accuracy in categorizing people with stroke based on fall history.
DESIGN: An observational measurement study with a test-retest design was conducted.
METHODS: One hundred six people with chronic stroke were recruited. Intrarater reliability was evaluated by repeating the Mini-BESTest within 10 days by the same rater. The Mini-BESTest was administered by 2 independent raters to establish interrater reliability. Validity was assessed by correlating Mini-BESTest scores with scores of other balance measures (Berg Balance Scale, one-leg-standing, Functional Reach Test, and Timed "Up & Go" Test) in the stroke group and by comparing Mini-BESTest scores between the stroke group and 48 control participants, and between fallers (≥1 falls in the previous 12 months, n=25) and nonfallers (n=81) in the stroke group.
RESULTS: The Mini-BESTest had excellent internal consistency (Cronbach alpha=.89-.94), intrarater reliability (intraclass correlation coefficient [3,1]=.97), and interrater reliability (intraclass correlation coefficient [2,1]=.96). The minimal detectable change at 95% confidence interval was 3.0 points. The Mini-BESTest was strongly correlated with other balance measures. Significant differences in Mini-BESTest total scores were found between the stroke and control groups and between fallers and nonfallers in the stroke group. In terms of floor and ceiling effects, the Mini-BESTest was significantly less skewed than other balance measures, except for one-leg-standing on the nonparetic side. The Berg Balance Scale showed significantly better ability to identify fallers (positive likelihood ratio=2.6) than the Mini-BESTest (positive likelihood ratio=1.8).
LIMITATIONS: The results are generalizable only to people with mild to moderate chronic stroke.
CONCLUSIONS: The Mini-BESTest is a reliable and valid tool for evaluating balance in people with chronic stroke.