The test-retest reliability, concurrent validity, and minimal detectable change of the L test in patients with total hip arthroplasty

Abstract Background The L test is a modified version of the timed up and go test (TUG) with an L-shaped walking path. The L test is more extensive than other performance tests, especially in turn direction and specific tasks. The study aimed to evaluate the test-retest reliability, concurrent validi...

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Main Authors: Fatih Özden, Gökhan Coşkun, Serkan Bakırhan
Format: Article
Language:English
Published: SpringerOpen 2021-08-01
Series:Bulletin of Faculty of Physical Therapy
Subjects:
Online Access:https://doi.org/10.1186/s43161-021-00038-8
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author Fatih Özden
Gökhan Coşkun
Serkan Bakırhan
author_facet Fatih Özden
Gökhan Coşkun
Serkan Bakırhan
author_sort Fatih Özden
collection DOAJ
description Abstract Background The L test is a modified version of the timed up and go test (TUG) with an L-shaped walking path. The L test is more extensive than other performance tests, especially in turn direction and specific tasks. The study aimed to evaluate the test-retest reliability, concurrent validity, and minimal detectable change of the L test in patients with total hip arthroplasty (THA). A cross-sectional study was conducted with 33 unilateral and primary THA patients. The L test was performed twice with an interval of an hour on the same day for the test-retest reliability. Timed up and go test (TUG), five times sit to stand test (FTST), and Harris hip score (HHS) were carried out for the analysis of the concurrent validity of the L test. Results The mean age of the participants was 74.6 ± 10.3 years. The ICC score of the L test was 0.992. Test-retest reliability was excellent. SEM95 and MDC95 values were 3.39 and 9.39, respectively. Both TUG and HHS were strongly correlated with the L test (r 1 = 0.889, r 2 = −0.568, p < 0.001). However, there was no significant correlation between FTST and L test (r = 0.024, p > 0.05). Conclusions The L test is valid and reliable performance measurement in patients with primary unilateral THA. MDC95 of the L test is an essential reference for clinicians in the rehabilitation follow-up process of THA patients.
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spelling doaj.art-ebd8222f9aec4474a724f4d631ca603a2022-12-21T21:34:09ZengSpringerOpenBulletin of Faculty of Physical Therapy1110-66112536-96602021-08-012611610.1186/s43161-021-00038-8The test-retest reliability, concurrent validity, and minimal detectable change of the L test in patients with total hip arthroplastyFatih Özden0Gökhan Coşkun1Serkan Bakırhan2Köyceğiz Vocational School of Health Services, Elderly Care Department, Muğla Sıtkı Koçman UniversityHome Health Care Services, Adana City Training and Research HospitalFaculty of Health Sciences, Physiotherapy and Rehabilitation Department, Ege UniversityAbstract Background The L test is a modified version of the timed up and go test (TUG) with an L-shaped walking path. The L test is more extensive than other performance tests, especially in turn direction and specific tasks. The study aimed to evaluate the test-retest reliability, concurrent validity, and minimal detectable change of the L test in patients with total hip arthroplasty (THA). A cross-sectional study was conducted with 33 unilateral and primary THA patients. The L test was performed twice with an interval of an hour on the same day for the test-retest reliability. Timed up and go test (TUG), five times sit to stand test (FTST), and Harris hip score (HHS) were carried out for the analysis of the concurrent validity of the L test. Results The mean age of the participants was 74.6 ± 10.3 years. The ICC score of the L test was 0.992. Test-retest reliability was excellent. SEM95 and MDC95 values were 3.39 and 9.39, respectively. Both TUG and HHS were strongly correlated with the L test (r 1 = 0.889, r 2 = −0.568, p < 0.001). However, there was no significant correlation between FTST and L test (r = 0.024, p > 0.05). Conclusions The L test is valid and reliable performance measurement in patients with primary unilateral THA. MDC95 of the L test is an essential reference for clinicians in the rehabilitation follow-up process of THA patients.https://doi.org/10.1186/s43161-021-00038-8L testReliabilityTotal hip arthroplastyValidity
spellingShingle Fatih Özden
Gökhan Coşkun
Serkan Bakırhan
The test-retest reliability, concurrent validity, and minimal detectable change of the L test in patients with total hip arthroplasty
Bulletin of Faculty of Physical Therapy
L test
Reliability
Total hip arthroplasty
Validity
title The test-retest reliability, concurrent validity, and minimal detectable change of the L test in patients with total hip arthroplasty
title_full The test-retest reliability, concurrent validity, and minimal detectable change of the L test in patients with total hip arthroplasty
title_fullStr The test-retest reliability, concurrent validity, and minimal detectable change of the L test in patients with total hip arthroplasty
title_full_unstemmed The test-retest reliability, concurrent validity, and minimal detectable change of the L test in patients with total hip arthroplasty
title_short The test-retest reliability, concurrent validity, and minimal detectable change of the L test in patients with total hip arthroplasty
title_sort test retest reliability concurrent validity and minimal detectable change of the l test in patients with total hip arthroplasty
topic L test
Reliability
Total hip arthroplasty
Validity
url https://doi.org/10.1186/s43161-021-00038-8
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