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Minimal Detectable Change for Motor Function Tests in Patients with Knee Osteoarthritis
OBJECTIVE: Improvement in a subject’s motor function is clinically evaluated by comparing measurements of the motor function tests taken before and after an intervention. Consequently, it is important to increase the accuracy of the determination of the intervention effect by confirming the minimal...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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JARM
2018
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7365206/ https://www.ncbi.nlm.nih.gov/pubmed/32789247 http://dx.doi.org/10.2490/prm.20180022 |
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author | Amano, Tetsuya Suzuki, Nobuharu |
author_facet | Amano, Tetsuya Suzuki, Nobuharu |
author_sort | Amano, Tetsuya |
collection | PubMed |
description | OBJECTIVE: Improvement in a subject’s motor function is clinically evaluated by comparing measurements of the motor function tests taken before and after an intervention. Consequently, it is important to increase the accuracy of the determination of the intervention effect by confirming the minimal detectable change (MDC), which is an index representing the limits of measurement errors in motor function tests. This study aimed to examine the MDC of the five-time sit-to-stand test (FTSST) and the 5-m walk test (5mWT) in patients with knee osteoarthritis (OA). METHODS: In this cross-sectional study, 83 patients (63 women and 20 men, mean age: 73.7±8.0 years) with knee OA were subjected to two trials of the FTSST and 5mWT. The maximum walking speed was calculated using the walking time in the 5mWT, and the intraclass correlation coefficients (ICCs) were determined. RESULTS: The ICCs (1,1) of the FTSST, the walking time in the 5mWT, and the walking speed were 0.90, 0.83, and 0.81, respectively. The MDC(95) for the FTSST time, walking time in the 5mWT, and walking speed were 1.71 s, 0.99 s, and 0.36 m/s, respectively. CONCLUSION: If the observed changes in the motor function tests exceed 1.71 s for FTSST time, 0.99 s for walking time in the 5mWT, or 0.36 m/s for walking speed, then an improvement in function is indicated. Such an improvement would reflect the effectiveness of the intervention. These findings may aid in clinical decision making when using motor function tests in patients with knee OA. |
format | Online Article Text |
id | pubmed-7365206 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | JARM |
record_format | MEDLINE/PubMed |
spelling | pubmed-73652062020-08-11 Minimal Detectable Change for Motor Function Tests in Patients with Knee Osteoarthritis Amano, Tetsuya Suzuki, Nobuharu Prog Rehabil Med Original Article OBJECTIVE: Improvement in a subject’s motor function is clinically evaluated by comparing measurements of the motor function tests taken before and after an intervention. Consequently, it is important to increase the accuracy of the determination of the intervention effect by confirming the minimal detectable change (MDC), which is an index representing the limits of measurement errors in motor function tests. This study aimed to examine the MDC of the five-time sit-to-stand test (FTSST) and the 5-m walk test (5mWT) in patients with knee osteoarthritis (OA). METHODS: In this cross-sectional study, 83 patients (63 women and 20 men, mean age: 73.7±8.0 years) with knee OA were subjected to two trials of the FTSST and 5mWT. The maximum walking speed was calculated using the walking time in the 5mWT, and the intraclass correlation coefficients (ICCs) were determined. RESULTS: The ICCs (1,1) of the FTSST, the walking time in the 5mWT, and the walking speed were 0.90, 0.83, and 0.81, respectively. The MDC(95) for the FTSST time, walking time in the 5mWT, and walking speed were 1.71 s, 0.99 s, and 0.36 m/s, respectively. CONCLUSION: If the observed changes in the motor function tests exceed 1.71 s for FTSST time, 0.99 s for walking time in the 5mWT, or 0.36 m/s for walking speed, then an improvement in function is indicated. Such an improvement would reflect the effectiveness of the intervention. These findings may aid in clinical decision making when using motor function tests in patients with knee OA. JARM 2018-12-22 /pmc/articles/PMC7365206/ /pubmed/32789247 http://dx.doi.org/10.2490/prm.20180022 Text en ©2018 The Japanese Association of Rehabilitation Medicine http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (CC BY-NC-ND) 4.0 License. |
spellingShingle | Original Article Amano, Tetsuya Suzuki, Nobuharu Minimal Detectable Change for Motor Function Tests in Patients with Knee Osteoarthritis |
title | Minimal Detectable Change for Motor Function Tests in Patients with Knee
Osteoarthritis |
title_full | Minimal Detectable Change for Motor Function Tests in Patients with Knee
Osteoarthritis |
title_fullStr | Minimal Detectable Change for Motor Function Tests in Patients with Knee
Osteoarthritis |
title_full_unstemmed | Minimal Detectable Change for Motor Function Tests in Patients with Knee
Osteoarthritis |
title_short | Minimal Detectable Change for Motor Function Tests in Patients with Knee
Osteoarthritis |
title_sort | minimal detectable change for motor function tests in patients with knee
osteoarthritis |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7365206/ https://www.ncbi.nlm.nih.gov/pubmed/32789247 http://dx.doi.org/10.2490/prm.20180022 |
work_keys_str_mv | AT amanotetsuya minimaldetectablechangeformotorfunctiontestsinpatientswithkneeosteoarthritis AT suzukinobuharu minimaldetectablechangeformotorfunctiontestsinpatientswithkneeosteoarthritis |