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Match exposure significantly influences acceleration–speed profile outcomes in elite football
McDaid, Kevin Zmijewski, Piotr Morgans, Ryland
McDaid, Kevin
Zmijewski, Piotr
Morgans, Ryland
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2026-07-05
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applsci-16-06721.pdf
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Abstract
Despite the growing use of acceleration–speed (AS) profiling in elite football, the number and composition of sessions required to generate stable in situ profiles remain unclear. AS profiling provides estimates of maximal theoretical acceleration (A0) and maximal theoretical velocity (S0), which may offer practically relevant information for monitoring player sprint-related qualities. This study examined the influence of profiling-window length and match exposure on in situ AS profile outcomes in 19 professional football players competing in the 2023–2024 English Football League Championship. Profiles were generated using two non-overlapping conditions comprising five consecutive sessions (5SS) and ten consecutive sessions (10SS). Mean A0 values were 6.91 ± 0.36 m/s2 for 5SS and 7.12 ± 0.40 m/s2 for 10SS, while mean S0 values were 9.52 ± 0.29 m/s and 9.89 ± 0.28 m/s, respectively. Reliability was assessed using intraclass correlation coefficients (ICCs), standard error of measurement (SEM), and smallest worthwhile change (SWC). The match count within each profiling window was associated with A0 and S0 outcomes in both 5SS and 10SS conditions (all p ≤ 0.004). However, ICC values were low, particularly for S0, and SEM exceeded SWC across conditions, indicating limited sensitivity for detecting small meaningful changes. These findings suggest that longer profiling windows may provide slightly more stable A0 estimates, whereas S0 appears more sensitive to match exposure and contextual variability. The results highlight the importance of interpreting AS profiles at an individual level and accounting for match exposure when comparing profile outcomes across monitoring windows.
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Kavanagh, C., McDaid, K., Cloak, R., Lane, A. M., Zmijewski, P., & Morgans, R. (2026). Match Exposure Significantly Influences Acceleration–Speed Profile Outcomes in Elite Football. Applied Sciences, 16 (13), article no. 6721. https://doi.org/10.3390/app16136721
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Journal article
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en
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© 2026 The Authors. Published by MDPI AG. This is an open access article available under a Creative Commons licence.
The published version can be accessed at the following link on the publisher’s website: https://doi.org/10.3390/app16136721
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2076-3417
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2076-3417
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This research received no external funding.