Clark, Nicholas C and Campbell, Stuart D (2021) Preseason weight-bearing ankle dorsiflexion in male professional football players with and without a history of severe ankle injury: A novel analysis in an English Premier League club. Physical Therapy in Sport, 52. pp. 21-29. DOI https://doi.org/10.1016/j.ptsp.2021.07.006
Clark, Nicholas C and Campbell, Stuart D (2021) Preseason weight-bearing ankle dorsiflexion in male professional football players with and without a history of severe ankle injury: A novel analysis in an English Premier League club. Physical Therapy in Sport, 52. pp. 21-29. DOI https://doi.org/10.1016/j.ptsp.2021.07.006
Clark, Nicholas C and Campbell, Stuart D (2021) Preseason weight-bearing ankle dorsiflexion in male professional football players with and without a history of severe ankle injury: A novel analysis in an English Premier League club. Physical Therapy in Sport, 52. pp. 21-29. DOI https://doi.org/10.1016/j.ptsp.2021.07.006
Abstract
Objectives Ankle injuries are common in professional football and have profound player/team/club consequences. The weight-bearing lunge-test (WBLT) assesses ankle dorsiflexion range-of-motion in football primary/secondary injury prevention and performance contexts. Data for uninjured and previously ankle-injured players in the English Premier League (EPL) is not available. This study analysed WBLT measurements (cm) within and between uninjured and previously severe ankle-injured players (injured-stiff group, injured-lax group) in one EPL club. Design Cross-sectional. Setting Preseason. Participants Forty-nine players (age 22.9 ± 4.6yr; height 181.6 ± 5.2 cm; mass 77.7 ± 7.6 kg). Main Outcome Measures: Prevalence (%) of previous unilateral severe ankle injury (USAI). Side-to-side (right/left, dominant/nondominant, injured/uninjured) WBLT comparisons at group-level (t-test [within-group]; Welch's ANOVA [between-group]; effect sizes [within-/between-group]) and individual-level (limb symmetry index [%]; absolute-asymmetry [%]). Results Prevalence of USAI was 38.7%. There were no statistically-significant side-to-side differences for within-/between-group comparisons. Effect sizes: just-below-large (injured-stiff) and extremely-large (injured-lax) for within-group injured-side/uninjured-side comparisons; just-below-medium (injured-lax) to just-above-medium (injured-stiff) for injured-side comparisons to uninjured players. Absolute-asymmetries uninjured players, 15.4 ± 13.2%; injured-stiff, 21.8 ± 33.6%; injured-lax 20.4 ± 13.6%. Conclusions Over one-third of players had previous USAI. Effect sizes indicate substantial within-group side-to-side differences and less substantial between-group differences. Across groups, some players had absolute-asymmetries that may elicit concern in ankle primary/secondary injury prevention and performance contexts.
Item Type: | Article |
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Uncontrolled Keywords: | Football; Ankle; Injury prevention screening; Weight-bearing lunge-test |
Divisions: | Faculty of Science and Health Faculty of Science and Health > Sport, Rehabilitation and Exercise Sciences, School of |
SWORD Depositor: | Unnamed user with email elements@essex.ac.uk |
Depositing User: | Unnamed user with email elements@essex.ac.uk |
Date Deposited: | 04 Aug 2021 19:13 |
Last Modified: | 30 Oct 2024 19:19 |
URI: | http://repository.essex.ac.uk/id/eprint/30826 |
Available files
Filename: Clark N et al 2021_PTiS_Ankle DF & WBLT_Final_RepositoryVersion_14.08.21.pdf
Licence: Creative Commons: Attribution-Noncommercial-No Derivative Works 3.0