![]() The ETUG scored from a video shows a good reliability for experienced raters and acceptable internal consistency. The correlation (Pearson's r) between ETUG total time and TUG after correcting for attenuation caused by restricted reliability in each of the measures was 0.85. The internal consistency (Cronbach's alpha) was 0.74. The absolute measurement error of the total time (1.96 S(w)) was 2.8 seconds. The test-retest reliability (ICC) ranged from 0.54 to 0.85. The intrarater and interrater reliability (intraclass correlation ) ranged from 0.55 to 0.97. TUG was registered by a regular stopwatch. Three raters timed the ETUG subtasks from a video, using a computer-based scoring programme, and the total ETUG time was calculated. Twenty-eight subjects (80 +/- 4.1 years) with balance and gait problems were included. The present study is a reliability and a validity study. The aim of the study was to test the intrarater, interrater, test-retest reliability and internal consistency of the ETUG, and the concurrent validity with the TUG. 'Expanded Timed Up-and-Go' (ETUG) was developed to assess each of the subtasks of the 'Timed Up-and-Go' (TUG).
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