Intrarater Reliability and Analysis of Learning Effects in the Y Balance Test

While the general reliability of the Y balance test has been previously found to be excellent, earlier reviews highlighted a need for a more consistent methodology between studies. The purpose of this test–retest intrarater reliability study was to assess the intrarater reliability of the YBT using...

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Main Authors: Olli Kattilakoski, Noora Kauranen, Mari Leppänen, Pekka Kannus, Kati Pasanen, Tommi Vasankari, Jari Parkkari
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Methods and Protocols
Subjects:
Online Access:https://www.mdpi.com/2409-9279/6/2/41
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author Olli Kattilakoski
Noora Kauranen
Mari Leppänen
Pekka Kannus
Kati Pasanen
Tommi Vasankari
Jari Parkkari
author_facet Olli Kattilakoski
Noora Kauranen
Mari Leppänen
Pekka Kannus
Kati Pasanen
Tommi Vasankari
Jari Parkkari
author_sort Olli Kattilakoski
collection DOAJ
description While the general reliability of the Y balance test has been previously found to be excellent, earlier reviews highlighted a need for a more consistent methodology between studies. The purpose of this test–retest intrarater reliability study was to assess the intrarater reliability of the YBT using different methodologies regarding normalisation for leg length, number of repetitions, and score calculation. Sixteen healthy adult novice recreational runners aged 18–55 years, both women and men, were reviewed in a laboratory environment. Mean calculated scores, intraclass correlation coefficient, standard error of measurement, and minimal detectable change were calculated and analysed between different leg length normalisation and score calculation methods. The number of repetitions needed to reach a plateauing of results was analysed from the mean proportion of maximal reach per successful repetition. The intrarater reliability of the YBT was found to be good to excellent, and it was not affected by the method of score calculation or leg length measurement. The test results plateaued after the sixth successful repetition. Based on this study, it is suggested to use anterior superior iliac spine–medial malleolus length for leg length normalisation because this method was proposed in the original YBT protocol. At least seven successful repetitions should be performed to reach a result plateau. The average of the best three repetitions should be used to mitigate possible outliers and account for the learning effects seen in this study.
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spelling doaj.art-663e6b9b0007448687b15fc44de861b32023-11-17T20:42:17ZengMDPI AGMethods and Protocols2409-92792023-04-01624110.3390/mps6020041Intrarater Reliability and Analysis of Learning Effects in the Y Balance TestOlli Kattilakoski0Noora Kauranen1Mari Leppänen2Pekka Kannus3Kati Pasanen4Tommi Vasankari5Jari Parkkari6Tampere Research Center of Sports Medicine, UKK Institute, 33500 Tampere, FinlandFaculty of Medicine and Health Technology, Tampere University, 33014 Tampere, FinlandTampere Research Center of Sports Medicine, UKK Institute, 33500 Tampere, FinlandTampere Research Center of Sports Medicine, UKK Institute, 33500 Tampere, FinlandTampere Research Center of Sports Medicine, UKK Institute, 33500 Tampere, FinlandFaculty of Medicine and Health Technology, Tampere University, 33014 Tampere, FinlandTampere Research Center of Sports Medicine, UKK Institute, 33500 Tampere, FinlandWhile the general reliability of the Y balance test has been previously found to be excellent, earlier reviews highlighted a need for a more consistent methodology between studies. The purpose of this test–retest intrarater reliability study was to assess the intrarater reliability of the YBT using different methodologies regarding normalisation for leg length, number of repetitions, and score calculation. Sixteen healthy adult novice recreational runners aged 18–55 years, both women and men, were reviewed in a laboratory environment. Mean calculated scores, intraclass correlation coefficient, standard error of measurement, and minimal detectable change were calculated and analysed between different leg length normalisation and score calculation methods. The number of repetitions needed to reach a plateauing of results was analysed from the mean proportion of maximal reach per successful repetition. The intrarater reliability of the YBT was found to be good to excellent, and it was not affected by the method of score calculation or leg length measurement. The test results plateaued after the sixth successful repetition. Based on this study, it is suggested to use anterior superior iliac spine–medial malleolus length for leg length normalisation because this method was proposed in the original YBT protocol. At least seven successful repetitions should be performed to reach a result plateau. The average of the best three repetitions should be used to mitigate possible outliers and account for the learning effects seen in this study.https://www.mdpi.com/2409-9279/6/2/41clinical balance testsdynamic postural controlpostural balancereliability
spellingShingle Olli Kattilakoski
Noora Kauranen
Mari Leppänen
Pekka Kannus
Kati Pasanen
Tommi Vasankari
Jari Parkkari
Intrarater Reliability and Analysis of Learning Effects in the Y Balance Test
Methods and Protocols
clinical balance tests
dynamic postural control
postural balance
reliability
title Intrarater Reliability and Analysis of Learning Effects in the Y Balance Test
title_full Intrarater Reliability and Analysis of Learning Effects in the Y Balance Test
title_fullStr Intrarater Reliability and Analysis of Learning Effects in the Y Balance Test
title_full_unstemmed Intrarater Reliability and Analysis of Learning Effects in the Y Balance Test
title_short Intrarater Reliability and Analysis of Learning Effects in the Y Balance Test
title_sort intrarater reliability and analysis of learning effects in the y balance test
topic clinical balance tests
dynamic postural control
postural balance
reliability
url https://www.mdpi.com/2409-9279/6/2/41
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