The test-retest reliability, concurrent validity and minimal detectable change of the 3-m backward walking test in patients with total hip arthroplasty
{"title":"The test-retest reliability, concurrent validity and minimal detectable change of the 3-m backward walking test in patients with total hip arthroplasty","authors":"Fatih Özden , Gökhan Coşkun , Serkan Bakırhan","doi":"10.1016/j.jajs.2020.11.002","DOIUrl":null,"url":null,"abstract":"<div><h3>Purpose</h3><p><span><span>To determine the test–retest reliability, concurrent validity and minimal detectable change of the 3-m backward walking test (3MBWT) </span>in patients with Total </span>Hip Arthroplasty (THA).</p></div><div><h3>Methods</h3><p><span>A total of 29 patients after unilateral primary THA were enrolled in the study. All evaluations were carried out by the same physiotherapist. The test-retest reliability of the 3MBWT was assessed at an hour interval and analyzed by the Intraclass correlation coefficient (ICC). In the concurrent validity analysis, the Spearman correlation coefficient between 3MBWT and Harris Hip Score (HHS) was calculated. In addition, the standard error of measurement (SEM</span><sub>95</sub>) and Minimal Detectable Change (MDC<sub>95</sub>) values were also calculated.</p></div><div><h3>Results</h3><p>The mean age of the patients was 75.6 ± 10.0 years. The mean time of the second test was 2.41 s better than the first assessment. The ICC score of 3MBWT was 0.983. Test-retest reliability was excellent. SEM<sub>95</sub> and MDC<sub>95</sub> values were 1.56 and 4.33, respectively. Both test and retest evaluations of the 3MBWT were correlated with the HHS (p < 0.01). The degree of correlations was moderate.</p></div><div><h3>Conclusion</h3><p>The 3MBWT is a valid and reliable test in patients with primary unilateral THA. The MDC value of 3MBWT provides essential information to clinicians about patients’ clinical progression.</p></div>","PeriodicalId":38088,"journal":{"name":"Journal of Arthroscopy and Joint Surgery","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.jajs.2020.11.002","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Arthroscopy and Joint Surgery","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214963520301218","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Medicine","Score":null,"Total":0}
引用次数: 2
Abstract
Purpose
To determine the test–retest reliability, concurrent validity and minimal detectable change of the 3-m backward walking test (3MBWT) in patients with Total Hip Arthroplasty (THA).
Methods
A total of 29 patients after unilateral primary THA were enrolled in the study. All evaluations were carried out by the same physiotherapist. The test-retest reliability of the 3MBWT was assessed at an hour interval and analyzed by the Intraclass correlation coefficient (ICC). In the concurrent validity analysis, the Spearman correlation coefficient between 3MBWT and Harris Hip Score (HHS) was calculated. In addition, the standard error of measurement (SEM95) and Minimal Detectable Change (MDC95) values were also calculated.
Results
The mean age of the patients was 75.6 ± 10.0 years. The mean time of the second test was 2.41 s better than the first assessment. The ICC score of 3MBWT was 0.983. Test-retest reliability was excellent. SEM95 and MDC95 values were 1.56 and 4.33, respectively. Both test and retest evaluations of the 3MBWT were correlated with the HHS (p < 0.01). The degree of correlations was moderate.
Conclusion
The 3MBWT is a valid and reliable test in patients with primary unilateral THA. The MDC value of 3MBWT provides essential information to clinicians about patients’ clinical progression.
期刊介绍:
Journal of Arthroscopy and Joint Surgery (JAJS) is committed to bring forth scientific manuscripts in the form of original research articles, current concept reviews, meta-analyses, case reports and letters to the editor. The focus of the Journal is to present wide-ranging, multi-disciplinary perspectives on the problems of the joints that are amenable with Arthroscopy and Arthroplasty. Though Arthroscopy and Arthroplasty entail surgical procedures, the Journal shall not restrict itself to these purely surgical procedures and will also encompass pharmacological, rehabilitative and physical measures that can prevent or postpone the execution of a surgical procedure. The Journal will also publish scientific research related to tissues other than joints that would ultimately have an effect on the joint function.