The Potentiating Response to Accentuated Eccentric Loading in Professional Football Players

Journal article


Godwin, M. S., Fearnett, T, and Newman, M. 2021. The Potentiating Response to Accentuated Eccentric Loading in Professional Football Players. Sport . 9 (12), pp. 1-11. https://doi.org/10.3390%2Fsports9120160
AuthorsGodwin, M. S., Fearnett, T, and Newman, M.
Abstract

The purpose of this study was to assess the acute effect of Accentuated Eccentric Loading (AEL) on countermovement jump (CMJ) height, peak power output (PPO) and peak velocity in male professional footballers using loads of 20% or 40% of body mass (AEL20 or AEL40, respectively). Twenty-three male professional football players (age 24 ± 4.5 years, range 18–34 years; body mass 80.21 ± 8.4 kg; height 178.26 ± 7.62 cm) took part in a randomised, cross-over design to test the potentiating responses of two AEL conditions (AEL20 and AEL40) versus a body weight control group (CON). Mean loads for the two conditions were 15.84 ± 1.70 kg (AEL20) and 31.67 ± 3.40 kg (AEL40). There was no significant difference between the three conditions for jump height (p = 0.507, η2G = 0.022). There were significant differences in peak power between the groups (p = 0.001, η2G = 0.154). Post hoc analysis with Bonferroni adjustment showed significantly higher peak power for both AEL conditions compared to the control group, but no significant differences between AEL conditions (CON vs. AEL20, p = 0.029, 95% CI −1016.735, −41.815, Cohen’s d = −0.56; CON vs. AEL40, p = 0.001, 95% CI −1244.995, −270.075, Cohen’s d = −0.81; AEL20 vs. AEL40, p = 0.75, 95% CI −715.720, 259.201, Cohen’s d = −0.24). There was no significant difference between the three conditions for peak velocity (p = 0.269, η2G = 0.046). AEL using either 20% or 40% of body mass may be used to increase peak power in the countermovement jump in well-trained professional football players.

Keywordspost-activation potentiation; countermovement jump; football; neuromuscular power; accentuated eccentric loading
Year2021
JournalSport
Journal citation9 (12), pp. 1-11
PublisherMDPI Open Access Journals
ISSN2075-4663
Digital Object Identifier (DOI)https://doi.org/10.3390%2Fsports9120160
Web address (URL)https://www.mdpi.com/2075-4663/9/12/160
Publisher's version
License
File Access Level
Open
Output statusPublished
Publication dates
Online26 Nov 2021
Publication process dates
Accepted18 Nov 2021
Deposited12 Dec 2023
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https://repository.derby.ac.uk/item/q3387/the-potentiating-response-to-accentuated-eccentric-loading-in-professional-football-players

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