Test–retest reliability and developmental evolution of the 6-min walk test in Caucasian boys aged 5–12years

2013 ◽  
Vol 23 (1) ◽  
pp. 19-24 ◽  
Author(s):  
Nathalie Goemans ◽  
Katrijn Klingels ◽  
Marleen van den Hauwe ◽  
Anneleen Van Orshoven ◽  
Sofie Vanpraet ◽  
...  
Keyword(s):  
Walk Test ◽  
Retest Reliability ◽  
Developmental Evolution ◽  
Test Retest Reliability

scholarly journals AB0882 RELIABILITY OF THE 3-M BACKWARDS WALK TEST IN PATIENTS WITH REVISION TOTAL KNEE ARTHROPLASTY

2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 1746.2-1746
Author(s):  
B. Unver ◽  
K. Sevik ◽  
V. Karatosun
Keyword(s):  
Total Knee Arthroplasty ◽  
Diagnostic Accuracy ◽  
Knee Arthroplasty ◽  
Fall Risk ◽  
Dynamic Balance ◽  
Fracture Dislocation ◽  
Walk Test ◽  
Retest Reliability ◽  
Total Knee ◽  
Test Retest Reliability

Background:Total knee arthroplasty (TKA) is an effective treatment for patients suffering from end-stage osteoarthritis with 10- to 15-year implant survivorship rates exceeding 90%. Infection, osteolysis due to polyethylene wear, loosening, stiffness and instability may cause to implant failure and revision of the TKA (rTKA). However, up to 20% of patients continue to have postoperative pain, functional limitations and low treatment satisfaction and 24% of patients were not able to walk unaided with no limp or a slight limp after TKA [1].Falls and related traumas can produce “fracture, dislocation, crushing, and other injuries” [2]. Falls often occur due to impaired physical function which includes changes in lower knee joint angle, weakened lower limb muscles, peripheral nerve blockade, deformity of the foot limited balance and gait.Several measures of fall risk have been previously developed however, recent research has demonstrated that backwards walking is more sensitive at identifying changes in mobility and balance compared to forward walking. Backwards walking is necessary to perform such tasks as backing up to a chair, opening up a door or getting out of the way of a sudden obstacle.3-M Backwards Walk Test (3MBWT) is used to evaluate walking skills, fall risk and dynamic balance. The 3MBWT demonstrated similar or better diagnostic accuracy for falls in the past year than the most commonly used measures and found to be reliable in healthy subjects. [3] However, its reliability in rTKA has not been investigated.Objectives:The purposes of this study were to determine the test-retest reliability and the minimal clinically important difference (MCID) of the 3MBWT in patients with rTKAMethods:Twenty-two patients with rTKA, operated on by the same surgeon, were included. For the 3MBWT, a distance of 3 meters was marked with tape and participants were asked to align their heels with the black tape. They were instructed to walk backwards as quickly. Patients performed trials for 3MBWT twice on the same day. Between the trials, patients waited for an hour on sitting position to prevent fatigue.Results:The 3MBWT showed an excellent test-retest reliability. Intraclass correlation coefficient ICC for 3MBWT was 0.97. The standard error of measurement and MCID at the 95% confidence level for 3MBWT were 1,08 and 2,99 respectively.Conclusion:The 3MBWT has an excellent test-retest reliability in patients with rTKA. It is an effective and reliable tool for measuring fall risk, dynamic balance and walking skills. As a clinical test, the 3MBWT is easy to score, has no cost, needs no special equipment and can be applied in a short time as part of the routine medical examination.References:[1]Shan L, Shan B, Suzuki A et al. Intermediate and long-term quality of life after total knee replacement: a systematic review and meta-analysis. JBJS 2015; 97: 156-168.[2]Johnson RL, Duncan CM, Ahn KS et al. Fall-Prevention Strategies and Patient Characteristics That Impact Fall Rates After Total Knee Arthroplasty. Anesthesia & Analgesia 2014; 119: 1113-1118.[3]Carter V, Jain T, James J et al. The 3-m Backwards Walk and Retrospective Falls: Diagnostic Accuracy of a Novel Clinical Measure. J Geriatr Phys Ther 2017.Disclosure of Interests:None declared

scholarly journals Reliability and repeatability of a smartphone-based 6-min walk test as a patient-centred outcome measure

2021 ◽  
Author(s):  
Jonathan Mak ◽  
Neil Rens ◽  
Dasha Savage ◽  
Helle Nielsen-Bowles ◽  
Doran Triggs ◽  
...  
Keyword(s):  
Cardiovascular Disease ◽  
High Reliability ◽  
Ground Truth ◽  
Test Reliability ◽  
Reliability Test ◽  
Walk Test ◽  
Retest Reliability ◽  
Implementation Challenges ◽  
Test Retest Reliability ◽  
At Home

Abstract Aims  The 6-min-walk test (6MWT) is a validated proxy for frailty and a predictor of clinical outcomes, yet is not widely used due to implementation challenges. This comparative effectiveness study assesses the reliability and repeatability of a home-based 6MWT compared to in-clinic 6MWTs in patients with cardiovascular disease. Methods and results  One hundred and ten (110) patients scheduled for cardiac or vascular surgery were enrolled during a study period from June 2018 to December 2019 at the Palo Alto VA Hospital. Subjects were provided with an Apple iPhone 7 and Apple Watch Series 3 loaded with the VascTrac research study application and performed a supervised in-clinic 6MWT during enrolment, at 2 weeks, 1, 3, and 6 months post-operatively. Subjects also received notifications to perform at-home smartphone-based 6MWTs once a week for a duration of 6 months. Test–retest reliability of in-clinic measurements and at-home measurements was assessed with an industry standard Cronbach’s alpha reliability test. Test–retest reliability for in-clinic ground truth 6MWT steps vs. in-clinic iPhone 6MWT steps was 0·99, showing high reliability between the two tested measurements. When comparing for in-clinic ground truth 6MWT steps vs. neighbouring at-home iPhone 6MWT steps, reliability was 0·74. Conclusion  Running the test–reliability test on both measurements shows that an iPhone 6MWT test is reliable compared to an in-clinic ground truth measurement in patients with cardiovascular disease.

scholarly journals Reliability and Minimal Detectable Change of Physical Performance Measures in Individuals With Pre-manifest and Manifest Huntington Disease

2013 ◽  
Vol 93 (7) ◽  
pp. 942-956 ◽  
Author(s):  
Lori Quinn ◽  
Hanan Khalil ◽  
Helen Dawes ◽  
Nora E. Fritz ◽  
Deb Kegelmeyer ◽  
...  
Keyword(s):  
Physical Performance ◽  
Outcome Measures ◽  
Physical Functioning ◽  
Huntington Disease ◽  
Step Test ◽  
Minimal Detectable Change ◽  
Walk Test ◽  
Detectable Change ◽  
Retest Reliability ◽  
Test Retest Reliability

BackgroundClinical intervention trials in people with Huntington disease (HD) have been limited by a lack of reliable and appropriate outcome measures.ObjectiveThe purpose of this study was to determine the reliability and minimal detectable change (MDC) of various outcome measures that are potentially suitable for evaluating physical functioning in individuals with HD.DesignThis was a multicenter, prospective, observational study.MethodsParticipants with pre-manifest and manifest HD (early, middle, and late stages) were recruited from 8 international sites to complete a battery of physical performance and functional measures at 2 assessments, separated by 1 week. Test-retest reliability (using intraclass correlation coefficients) and MDC values were calculated for all measures.ResultsSeventy-five individuals with HD (mean age=52.12 years, SD=11.82) participated in the study. Test-retest reliability was very high (>.90) for participants with manifest HD for the Six-Minute Walk Test (6MWT), 10-Meter Walk Test, Timed “Up & Go” Test (TUG), Berg Balance Scale (BBS), Physical Performance Test (PPT), Barthel Index, Rivermead Mobility Index, and Tinetti Mobility Test (TMT). Many MDC values suggested a relatively high degree of inherent variability, particularly in the middle stage of HD. Minimum detectable change values for participants with manifest HD that were relatively low across disease stages were found for the BBS (5), PPT (5), and TUG (2.98). For individuals with pre-manifest HD (n=11), the 6MWT and Four Square Step Test had high reliability and low MDC values.LimitationsThe sample size for the pre-manifest HD group was small.ConclusionsThe BBS, PPT, and TUG appear most appropriate for clinical trials aimed at improving physical functioning in people with manifest HD. Further research in people with pre-manifest HD is necessary.

Test–retest reliability, validity, and correlates of the 2‐min walk test in outpatients with depression

2020 ◽  
Vol 25 (2) ◽  
Author(s):  
Davy Vancampfort ◽  
David Basangwa ◽  
Samuel Kimbowa ◽  
Joseph Firth ◽  
Felipe Schuch ◽  
...  
Keyword(s):  
Walk Test ◽  
Retest Reliability ◽  
Test Retest Reliability
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