The minimal detectable change (MDC) of the TUG, DGI, and BBS were 3.2, 1.9, and 2.7, respectively. The standard error of measurement (SEM) of the TUG, DGI, and BBS were 1.16, 0.71, and 0.98, respectively. The reliability of the TUG (intraclass correlation coefficient = 0.98), DGI (ICC 2,1 = 0.98) and BBS (ICC 2,1 = 0.99) were excellent. In addition, the third assessment of each scale was taken at the time of discharge to determine the responsiveness of the three outcome measures. A senior physical therapist assessed the test-retest reliability and validity of three scales, including the DGI, TUG, and BBS over two testing sessions. Methodsįifty-six patients (39 male and 17 female) with chronic stroke participated in this study. The purpose of the present study was to examine test-retest reliability, construct validity, and responsiveness of the Timed Up and Go Test (TUG), Berg Balance Scale (BBS), and Dynamic Gait Index (DGI) for measuring balance in patients with chronic stroke. Various outcome measures are used for the assessment of balance and mobility in patients with stroke.
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