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The test-retest reliability of four functional mobility tests in apparently healthy adults

Northgraves, Matthew J.; Hayes, Stephen C.; Marshall, Philip; Madden, Leigh A.; Vince, Rebecca V.

Authors

Stephen C. Hayes



Abstract

Background: Simple field tests are often used to assess functional mobility in clinical settings. Despite having many benefits, these tests are susceptible to measurement error and individual variation. Objectives: To examine the test-retest and absolute reliability of timed up and go test (TUG), five times sit-to-stand (FTSTS), stair climb test (SCT) and 6 minute walk (6MWT). Methods: Over two sessions, thirty-five subjects (30-74 years), repeated the five tests approximately four weeks apart. Test-retest reliability (intraclass correlations [ICC]) and absolute reliability (95% limit of agreements [95% LOA]; standard error of measurement [SEM] and minimum detectable change [MDC]) were calculated. Results: All five tests had high test-retest reliability (ICC > 0.95) although significant between session changes were present for the TUG and FTSTS (p < 0.05). FTSTS displayed the greatest measurement error whilst 95% LOA was the most conservative measure of absolute reliability. Conclusions: The results of this study indicate that the TUG, FTSTS, SCT and 6MWT are reliable when performed four weeks apart. Furthermore, the inclusion of SEM, MDC and 95% LOA provides reference values to aid in identifying changes over time above those of measurement error and individual variation.

Citation

Northgraves, M. J., Hayes, S. C., Marshall, P., Madden, L. A., & Vince, R. V. (2016). The test-retest reliability of four functional mobility tests in apparently healthy adults. Isokinetics and Exercise Science, 24(3), 171-179. https://doi.org/10.3233/ies-160614

Journal Article Type Article
Acceptance Date Feb 3, 2016
Publication Date Aug 22, 2016
Deposit Date Feb 24, 2016
Publicly Available Date Aug 22, 2016
Journal Isokinetics and exercise science
Print ISSN 0959-3020
Electronic ISSN 1878-5913
Publisher IOS Press
Peer Reviewed Peer Reviewed
Volume 24
Issue 3
Pages 171-179
DOI https://doi.org/10.3233/ies-160614
Keywords TUG; FTSTS; Stair climb; 6MWT
Public URL https://hull-repository.worktribe.com/output/411326
Publisher URL http://content.iospress.com/articles/isokinetics-and-exercise-science/ies614
Copyright Statement ©2016 University of Hull
Additional Information Author's accepted manuscript of an article published in: Isokinetics and exercise science, 2016, v.24, issue 3

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