Research Repository

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

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. 21 - 29. ISSN 1466-853X

[img] Text
Clark N et al 2021_PTiS_Ankle DF & WBLT_Final_RepositoryVersion_14.08.21.pdf - Accepted Version
Restricted to Repository staff only until 28 July 2022.
Available under License Creative Commons Attribution Non-commercial No Derivatives.

Download (366kB) | Request a copy

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
Uncontrolled Keywords: Football, Ankle, Injury prevention screening, Weight-bearing lunge-test
Divisions: Faculty of Science and Health > Sport, Rehabilitation and Exercise Sciences, School of
Depositing User: Elements
Date Deposited: 04 Aug 2021 19:13
Last Modified: 17 Aug 2021 08:19
URI: http://repository.essex.ac.uk/id/eprint/30826

Actions (login required)

View Item View Item