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Upper Quarter Y Balance test performance: Normative values for healthy youth aged 10 to 17 years

BACKGROUND: The Upper Quarter Y Balance test (YBT-UQ) is a field test for measuring shoulder mobility/stability. However, there is a lack of information regarding age- and sex-specific reference values for classifying the YBT-UQ performance of children and adolescents. OBJECTIVE: The aim was to inve...

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Autores principales: Schwiertz, Gerrit, Bauer, Julian, Muehlbauer, Thomas
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8213051/
https://www.ncbi.nlm.nih.gov/pubmed/34143826
http://dx.doi.org/10.1371/journal.pone.0253144
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author Schwiertz, Gerrit
Bauer, Julian
Muehlbauer, Thomas
author_facet Schwiertz, Gerrit
Bauer, Julian
Muehlbauer, Thomas
author_sort Schwiertz, Gerrit
collection PubMed
description BACKGROUND: The Upper Quarter Y Balance test (YBT-UQ) is a field test for measuring shoulder mobility/stability. However, there is a lack of information regarding age- and sex-specific reference values for classifying the YBT-UQ performance of children and adolescents. OBJECTIVE: The aim was to investigate YBT-UQ performance in youth and to provide age- and sex-specific normative values. METHOD: Six hundred and sixty-five persons (325 girls, 340 boys) aged between 10 and 17 years carried out the YBT-UQ test. Following this, maximum reach values, normalised in terms of arm length, were calculated for each arm (i.e., left and right) and reach direction (i.e., medial [MD], inferolateral [IL], superolateral [SL]), and the composite score (CS) per arm. Additionally, percentiles were displayed graphically and in tabular form, distinguished according to age and gender. RESULTS: In boys, those aged 14–15 years showed a higher achievement (e.g., MD direction) compared with both younger (12–13-year-olds) and older (16–17-year-olds) persons. In girls, differences related to age could only be observed for the IL direction and the CS, where the youngest age group (10–11-year-olds) achieved better results than the older groups. Sex-specific differences to the girls’ advantage could be observed in 12–13-year-olds (i.e., SL and CS), and to the boys’ advantage in 14–15-year-olds (i.e., for all reach directions) and 16–17-year-olds (i.e., IL and SL direction and CS). Further, curvilinear developments were observed with regard to the 10(th), 50(th), and 90(th) percentiles, and were more strongly marked in boys than in girls. CONCLUSIONS: The obtained age- and sex-specific normative values for the YBT-UQ can be used by teachers, coaches, and therapists to classify the level of shoulder mobility/stability among 10–17 year-old children and adolescents.
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spelling pubmed-82130512021-06-29 Upper Quarter Y Balance test performance: Normative values for healthy youth aged 10 to 17 years Schwiertz, Gerrit Bauer, Julian Muehlbauer, Thomas PLoS One Research Article BACKGROUND: The Upper Quarter Y Balance test (YBT-UQ) is a field test for measuring shoulder mobility/stability. However, there is a lack of information regarding age- and sex-specific reference values for classifying the YBT-UQ performance of children and adolescents. OBJECTIVE: The aim was to investigate YBT-UQ performance in youth and to provide age- and sex-specific normative values. METHOD: Six hundred and sixty-five persons (325 girls, 340 boys) aged between 10 and 17 years carried out the YBT-UQ test. Following this, maximum reach values, normalised in terms of arm length, were calculated for each arm (i.e., left and right) and reach direction (i.e., medial [MD], inferolateral [IL], superolateral [SL]), and the composite score (CS) per arm. Additionally, percentiles were displayed graphically and in tabular form, distinguished according to age and gender. RESULTS: In boys, those aged 14–15 years showed a higher achievement (e.g., MD direction) compared with both younger (12–13-year-olds) and older (16–17-year-olds) persons. In girls, differences related to age could only be observed for the IL direction and the CS, where the youngest age group (10–11-year-olds) achieved better results than the older groups. Sex-specific differences to the girls’ advantage could be observed in 12–13-year-olds (i.e., SL and CS), and to the boys’ advantage in 14–15-year-olds (i.e., for all reach directions) and 16–17-year-olds (i.e., IL and SL direction and CS). Further, curvilinear developments were observed with regard to the 10(th), 50(th), and 90(th) percentiles, and were more strongly marked in boys than in girls. CONCLUSIONS: The obtained age- and sex-specific normative values for the YBT-UQ can be used by teachers, coaches, and therapists to classify the level of shoulder mobility/stability among 10–17 year-old children and adolescents. Public Library of Science 2021-06-18 /pmc/articles/PMC8213051/ /pubmed/34143826 http://dx.doi.org/10.1371/journal.pone.0253144 Text en © 2021 Schwiertz et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Schwiertz, Gerrit
Bauer, Julian
Muehlbauer, Thomas
Upper Quarter Y Balance test performance: Normative values for healthy youth aged 10 to 17 years
title Upper Quarter Y Balance test performance: Normative values for healthy youth aged 10 to 17 years
title_full Upper Quarter Y Balance test performance: Normative values for healthy youth aged 10 to 17 years
title_fullStr Upper Quarter Y Balance test performance: Normative values for healthy youth aged 10 to 17 years
title_full_unstemmed Upper Quarter Y Balance test performance: Normative values for healthy youth aged 10 to 17 years
title_short Upper Quarter Y Balance test performance: Normative values for healthy youth aged 10 to 17 years
title_sort upper quarter y balance test performance: normative values for healthy youth aged 10 to 17 years
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8213051/
https://www.ncbi.nlm.nih.gov/pubmed/34143826
http://dx.doi.org/10.1371/journal.pone.0253144
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