The speed and acceleration of the ball carrier and tackler into contact during front-on tackles in rugby league

Journal article


Parmley, James, Jones, Ben, Whitehead, Sarah, Rennie, Gordon, Hendricks, Sharief, Johnston, Richard, Collins, Neil, Bennett, Thomas and Weaving, Dan. (2023). The speed and acceleration of the ball carrier and tackler into contact during front-on tackles in rugby league. Journal of Sports Sciences. 41(15), pp. 1450-1458. https://doi.org/10.1080/02640414.2023.2273657
AuthorsParmley, James, Jones, Ben, Whitehead, Sarah, Rennie, Gordon, Hendricks, Sharief, Johnston, Richard, Collins, Neil, Bennett, Thomas and Weaving, Dan
Abstract

The aim was to use a combination of video analysis and microtechnology (10 Hz global positioning system [GPS]) to quantify and compare the speed and acceleration of ball-carriers and tacklers during the pre-contact phase (contact − 0.5s) of the tackle event during rugby league match-play. Data were collected from 44 professional male rugby league players from two Super League clubs across two competitive matches. Tackle events were coded and subject to three stages of inclusion criteria to identify front-on tackles. 10 Hz GPS data was synchronised with video to extract the speed and acceleration of the ball-carrier and tackler into each front-on tackle (n = 214). Linear mixed effects models (effect size [ES], confidence intervals, p-values) compared differences. Overall, ball-carriers (4.73 ± 1.12 m∙s−1) had greater speed into front-on tackles than tacklers (2.82 ± 1.07 m∙s−1; ES = 1.69). Ball-carriers accelerated (0.67 ± 1.01 m∙s−2) into contact whilst tacklers decelerated (−1.26 ± 1.36 m∙s−2; ES = 1.74). Positional comparisons showed speed was greater during back vs. back (ES = 0.66) and back vs. forward (ES = 0.40) than forward vs. forward tackle events. Findings can be used to inform strategies to improve performance and player welfare

KeywordsRugby league; tackle; speed; acceleration
Year01 Jan 2023
JournalJournal of Sports Sciences
Journal citation41 (15), pp. 1450-1458
PublisherRoutledge
ISSN0264-0414
Digital Object Identifier (DOI)https://doi.org/10.1080/02640414.2023.2273657
Web address (URL)https://www.tandfonline.com/doi/full/10.1080/02640414.2023.2273657
Open accessPublished as ‘gold’ (paid) open access
Research or scholarlyResearch
Page range1450-1458
Publisher's version
License
File Access Level
Open
Output statusPublished
Publication dates
Print29 Nov 2023
Publication process dates
Accepted14 Oct 2023
Deposited06 Feb 2024
Additional information

© 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The terms on which this article has been published allow the posting of the Accepted Manuscript in a repository by the author(s) or with their consent.

Place of publicationUnited Kingdom
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