Research

Pre-binding prior to full engagement improves loading conditions for front row players in contested rugby union scrums


Reference:

Preatoni, E., Cazzola, D., Stokes, K., England, M. and Trewartha, G., 2015. Pre-binding prior to full engagement improves loading conditions for front row players in contested rugby union scrums. Scandinavian Journal of Medicine and Science in Sports

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Official URL:

http://dx.doi.org/10.1111/sms.12592

Abstract

We investigated the effect of a ‘PreBind’ engagement protocol on the biomechanics of contested Rugby Union scrummaging at different playing levels. ‘PreBind’ requires front-row props to take a bind on opposing players prior to the engagement, and to maintain the bind throughout the scrum duration. Twenty-seven teams from five different playing levels performed live scrums under realistic conditions. Video analysis, pressures sensors, and inertial measurement units measured biomechanical outcomes as teams scrummaged following different engagement protocols: the CTPE (referee calls ‘crouch-touch-pause-engage’); the CTS (‘crouch-touch-set’); and, the PreBind (‘crouch-bind-set’) variants. PreBind reduced the set-up distance between the packs (-27%), and the speed at which they came into contact by more than 20%. The peak biomechanical stresses acting on front rows during the engagement phase were decreased in PreBind by 14-25% with respect to CTPE and CTS, without reducing the capability to generate force in the subsequent sustained push. No relevant main effects were recorded for playing level due to within-group variability and there were no interaction effects between playing level and engagement protocol. Pre-binding reduced many mechanical quantities that have been indicated as possible factors for chronic and acute injury, and may lead to safer engagement conditions without affecting subsequent performance.

Details

Item Type Articles
CreatorsPreatoni, E., Cazzola, D., Stokes, K., England, M. and Trewartha, G.
DOI10.1111/sms.12592
Uncontrolled Keywordsimpact biomechanics,injury prevention, sports performance ,scrummaging technique,wearable sensors,pressure
DepartmentsFaculty of Humanities & Social Sciences > Health
Research CentresEPSRC Centre for Doctoral Training in Statistical Mathematics (SAMBa)
Publisher StatementPreatoni_2015_LiveScrum2Ways_SJMSS_submittedversion_.pdf: This is the peer reviewed version of the following article: Preatoni, E, Cazzola, D, Stokes, K, England, M & Trewartha, G 2015, 'Pre-binding prior to full engagement improves loading conditions for front row players in contested rugby union scrums' Scandinavian Journal of Medicine and Science in Sports, pp. 1 - 10., which has been published in final form at http://dx.doi.org/10.1111/sms.12592. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.;Preatoni_2015_LiveScrum2Ways_SJMSS_acceptedversion_.pdf: This is the peer reviewed version of the following article: Preatoni, E, Cazzola, D, Stokes, K, England, M & Trewartha, G 2015, 'Pre-binding prior to full engagement improves loading conditions for front row players in contested rugby union scrums' Scandinavian Journal of Medicine and Science in Sports, pp. 1 - 10., which has been published in final form at http://dx.doi.org/10.1111/sms.12592. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
RefereedYes
StatusPublished
ID Code47500

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