Assessing the Y-Balance Test: Relationship With Strength and Functional Performance Following ACL Reconstruction Article Swipe

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Philipp Barzyk , Jochen Paul , Franziska Zumstein ·

YOU? · · 2025 · Open Access · · DOI: https://doi.org/10.2519/josptopen.2025.0170

OBJECTIVE: To investigate the relationship between dynamic postural control measured by the Lower Quarter Y-Balance Test (YBT-LQ) and functional outcomes in individuals following anterior cruciate ligament (ACL) injury. DESIGN: Longitudinal cohort study METHODS: Limb Symmetry Index (LSI) scores for the YBT-LQ were assessed for 55 patients with ACL reconstruction, at 3 and 9 months postoperatively. Functional performance was evaluated using isokinetic strength measurements and functional tests. We analyzed changes in YBT-LQ scores with paired t-tests and examined the relationship between YBT-LQ scores and functional outcomes with Pearson's r. Multiple regression analysis assessed the predictive value of 3-month YBT-LQ scores for 9-month functional measures. RESULTS: YBT-LQ LSI scores improved significantly from 3 to 9 months post-operative ( p < 0.01). Individual reach direction scores did not change. There were weak to moderate correlations between anterior YBT-LQ scores and drop jump LSI: r = 0.43, p = 0.01; and between posterolateral YBT-LQ scores and isokinetic flexion: r = 0.33, p = 0.04. Three-month YBT-LQ scores did not predict 9-month functional outcomes. CONCLUSION: The YBT-LQ, despite its clinical utility in assessing dynamic postural control, may be insufficient when used in isolation for RTS decisions.

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Type: article
Language: en
Landing Page: https://doi.org/10.2519/josptopen.2025.0170
OA Status: diamond
OpenAlex ID: https://openalex.org/W4416088312

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DOI: https://doi.org/10.2519/josptopen.2025.0170

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Title: Assessing the Y-Balance Test: Relationship With Strength and Functional Performance Following ACL Reconstruction

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Type: article

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Language: en

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Publication year: 2025

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Publication date: 2025-11-10

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Authors: Philipp Barzyk, Jochen Paul, Franziska Zumstein

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Landing page: https://doi.org/10.2519/josptopen.2025.0170

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OA status: diamond

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OA URL: https://doi.org/10.2519/josptopen.2025.0170

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Cited by: 0

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