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Effect of the PreBind engagement process on scrum timing and stability in the 2013 to 2016 Six Nations

Bradley, Eddie, Hogg, Robert and Archer, David (2017) Effect of the PreBind engagement process on scrum timing and stability in the 2013 to 2016 Six Nations. International Journal of Sports Physiology and Performance, 13 (7). pp. 1-21. ISSN 1555-0265

Item Type: Article

Abstract

This study examined if changes in scrum engagement laws from the “crouch-touch-set” (CTS) in 2013 to the “PreBind” engagement from 2014 onwards have led to changes in scrum characteristics, specifically timing, in international rugby union.
Duration and outcomes were identified for all scrums occurring in the 2013-2016 Six Nations (n=60 games) using video analysis.
Scrum duration increased after the introduction of the PreBind engagement from 59 s in 2013 to 69 s in 2016 (ρ=0.024, ES 0.93). A significant increase in mean contact duration per scrum occurred when prebinding was adopted (ρ<0.05), moving from 7.5 s under the CTS process to 8.5, 10.0 and 10.8 s with PreBind in 2014, 2015 and 2016 (ES 0.71, 2.05 and 3.0, respectively). The number of scrum resets and collapsed scrums, along with early engagement and pulling down infringements were lower under the PreBind process.
Overall, the PreBind engagement resulted in longer scrums with significant increases observed in overall and contact durations, with improved stability related characteristics. The longer contact time is a consequence of increased stability with a shift from high energy impact to a sustained push phase with a lower force that is a benefit to player welfare.

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More Information

Depositing User: Eddie Bradley

Identifiers

Item ID: 8657
Identification Number: https://doi.org/10.1123/ijspp.2017-0531
ISSN: 1555-0265
URI: http://sure.sunderland.ac.uk/id/eprint/8657
Official URL: https://journals.humankinetics.com/doi/abs/10.1123...

Users with ORCIDS

ORCID for Eddie Bradley: ORCID iD orcid.org/0000-0003-3518-3305

Catalogue record

Date Deposited: 30 Jan 2018 15:30
Last Modified: 30 Sep 2020 11:16

Contributors

Author: Eddie Bradley ORCID iD
Author: Robert Hogg
Author: David Archer

University Divisions

Faculty of Health Sciences and Wellbeing
Faculty of Health Sciences and Wellbeing > School of Nursing and Health Sciences

Subjects

Sciences > Sport Sciences

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