The effects of a competitive soccer match on jump performance and inter-limb asymmetries in elite academy soccer players

Bromley, Tom and Turner, Anthony N. and Read, Paul and Lake, Jason and Maloney, Sean and Chavda, Shyam and Bishop, Chris (2018) The effects of a competitive soccer match on jump performance and inter-limb asymmetries in elite academy soccer players. Journal of Strength and Conditioning Research . ISSN 1064-8011 (Accepted/In press)

[img] PDF - Final accepted version (with author's formatting)
Restricted to Repository staff and depositor only

Download (423kB)

Abstract

The purpose of the present study was to investigate the effects of a competitive soccer match on jump performance and inter-limb asymmetries over incremental time points during a 72-hour (h) period. Fourteen elite adolescent players from a professional English category three academy performed single leg countermovement jumps (SLCMJ) pre, post, 24, 48, and 72-h post-match on a single force platform. Eccentric impulse, concentric impulse, peak propulsive force, jump height, peak landing force, and landing impulse were monitored throughout. Inter-limb asymmetries were also calculated for each metric as the percentage difference between limbs. Significant negative changes (p < 0.05) in jump performance were noted for all metrics at all time points, with the exception of jump height. Inter-limb asymmetries were metric-dependent and showed very large increases, specifically post-match, with a trend to reduce back towards baseline values at the 48-h time point for propulsive-based metrics. Asymmetries for landing metrics did not peak until the 24-h time point and again reduced towards baseline at 48-h. The present study highlights the importance of monitoring distinct jump metrics, as jump height alone was not sensitive enough to show significant changes in jump performance. However, inter-limb asymmetries were sensitive to fatigue with very large increases post-match. More frequent monitoring of asymmetries could enable practitioners to determine whether existing imbalances are also associated with reductions in physical performance or increased injury risk.

Item Type: Article
Research Areas: A. > School of Science and Technology > London Sport Institute > Strength and Conditioning at the London Sport Institute
Item ID: 25399
Useful Links:
Depositing User: Chris Bishop
Date Deposited: 15 Oct 2018 11:22
Last Modified: 07 Nov 2018 19:01
URI: http://eprints.mdx.ac.uk/id/eprint/25399

Actions (login required)

Edit Item Edit Item

Full text downloads (NB count will be zero if no full text documents are attached to the record)

Downloads per month over the past year