Validity of the -Foot Up and Go, Timed Up and Go, and ActivitiesSpecificBalance Confidence scale in older adults with and withoutcognitive impairment

摘要

The purpose of this study was to determinewhether (1) mild cognitive impairment (MCI) alters the validityof the Timed Up and Go (TUG), the 8Foot Up and Go(8UG), or the ActivitiesSpecific Balance Confidence (ABC)scale in the identification of fallers and nonfallers and (2) therewere differences in the concurrent validity between the TUGand ABC when compared with the 8UG and ABC in those withand without MCI. The classification of MCI was based on ascore of <26 points on the Montreal Cognitive Assessment. Forthe 62 participants enrolled, excellent correlations were demonstratedin pairwise comparisons between the outcome measures(on a continuous scale). Based on frequently citedcutpoints, the sensitivity of the TUG was only 20%, with aspecificity of 94.6%, and the sensitivity of the 8UG was 64%,with a specificity of 75.7%. The TUG identified fallers at significantlydifferent rates than the 8UG and the ABC (p < 0.05).For this reason, the 8UG is recommended as a more appropriateoutcome measure for identifying fall risk in communitydwellingolder adults. Fall history was found as the only significantpredictor of test outcome for the TUG, 8UG, and ABC,indicating that MCI is not a significant determinant of testperformance.