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Reliability of the 6-min walk test after total knee arthroplasty

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@article{7a53e542602944fe83c7f910c7235720,
title = "Reliability of the 6-min walk test after total knee arthroplasty",
abstract = "PURPOSE: The 6-min walk test is a simple clinical outcome measure, which has been used frequently to assess functional performance in many different patient groups, including patients with total knee arthroplasty (TKA). The 6-min walk test measures the maximal distance a subject is able to walk in 6 min. The reliability is unknown in patients with TKA. Therefore, the purpose of the study was to assess the reliability of the 6-min walk test in patients with recent TKA. METHODS: Thirty-four patients with TKA performed 2 test trials the same day, separated by a 1-h seated rest. To assess reliability, intra-class correlation coefficient (ICC(2,1)), standard error of measurement (SEM), and smallest real difference (SRD) were calculated. RESULTS: The patients walked on average 14.1 m longer at the second (397.2 m) compared to the first (383.1 m) test trial. The ICC(2,1), SEM, and SRD were 0.97, 13.0, and 36.1 m, respectively. CONCLUSIONS: The intra-tester reliability of the 6-min walk test was high in patients with TKA. The thresholds of the 6-min walk test to detect a real change are acceptable in research (SEM) and clinical settings (SRD). We recommend that the longest distance walked in 2 supervised test trials should be used. LEVEL OF EVIDENCE: I.",
author = "Jakobsen, {Thomas Linding} and Henrik Kehlet and Thomas Bandholm",
year = "2013",
doi = "10.1007/s00167-012-2054-y",
language = "English",
volume = "21",
pages = "2625–2628",
journal = "Knee Surgery, Sports Traumatology, Arthroscopy",
issn = "0942-2056",
publisher = "Springer",
number = "11",

}

RIS

TY - JOUR

T1 - Reliability of the 6-min walk test after total knee arthroplasty

AU - Jakobsen, Thomas Linding

AU - Kehlet, Henrik

AU - Bandholm, Thomas

PY - 2013

Y1 - 2013

N2 - PURPOSE: The 6-min walk test is a simple clinical outcome measure, which has been used frequently to assess functional performance in many different patient groups, including patients with total knee arthroplasty (TKA). The 6-min walk test measures the maximal distance a subject is able to walk in 6 min. The reliability is unknown in patients with TKA. Therefore, the purpose of the study was to assess the reliability of the 6-min walk test in patients with recent TKA. METHODS: Thirty-four patients with TKA performed 2 test trials the same day, separated by a 1-h seated rest. To assess reliability, intra-class correlation coefficient (ICC(2,1)), standard error of measurement (SEM), and smallest real difference (SRD) were calculated. RESULTS: The patients walked on average 14.1 m longer at the second (397.2 m) compared to the first (383.1 m) test trial. The ICC(2,1), SEM, and SRD were 0.97, 13.0, and 36.1 m, respectively. CONCLUSIONS: The intra-tester reliability of the 6-min walk test was high in patients with TKA. The thresholds of the 6-min walk test to detect a real change are acceptable in research (SEM) and clinical settings (SRD). We recommend that the longest distance walked in 2 supervised test trials should be used. LEVEL OF EVIDENCE: I.

AB - PURPOSE: The 6-min walk test is a simple clinical outcome measure, which has been used frequently to assess functional performance in many different patient groups, including patients with total knee arthroplasty (TKA). The 6-min walk test measures the maximal distance a subject is able to walk in 6 min. The reliability is unknown in patients with TKA. Therefore, the purpose of the study was to assess the reliability of the 6-min walk test in patients with recent TKA. METHODS: Thirty-four patients with TKA performed 2 test trials the same day, separated by a 1-h seated rest. To assess reliability, intra-class correlation coefficient (ICC(2,1)), standard error of measurement (SEM), and smallest real difference (SRD) were calculated. RESULTS: The patients walked on average 14.1 m longer at the second (397.2 m) compared to the first (383.1 m) test trial. The ICC(2,1), SEM, and SRD were 0.97, 13.0, and 36.1 m, respectively. CONCLUSIONS: The intra-tester reliability of the 6-min walk test was high in patients with TKA. The thresholds of the 6-min walk test to detect a real change are acceptable in research (SEM) and clinical settings (SRD). We recommend that the longest distance walked in 2 supervised test trials should be used. LEVEL OF EVIDENCE: I.

U2 - 10.1007/s00167-012-2054-y

DO - 10.1007/s00167-012-2054-y

M3 - Journal article

VL - 21

SP - 2625

EP - 2628

JO - Knee Surgery, Sports Traumatology, Arthroscopy

JF - Knee Surgery, Sports Traumatology, Arthroscopy

SN - 0942-2056

IS - 11

ER -

ID: 34875311