Information-governing dynamics of attacker-defender interactions in youth rugby union

Passos, Pedro, Araújo, Duarte, Davids, Keith W., Gouveia, Luis, Milho, João, & Serpa, SidóNio (2008) Information-governing dynamics of attacker-defender interactions in youth rugby union. Journal of Sports Sciences, 26(13), pp. 1421-1429.

View at publisher


Abstract Previous work on dynamics of interpersonal interactions in 1 vs. 1 sub-phases of basketball has identified changes in interpersonal distance between an attacker and defender as a potential control parameter for influencing organizational states of attacker–defender dyads. Other studies have reported the constraining effect of relative velocity between an attacker and defender in 1 vs. 1 dyads. To evaluate the relationship between these candidate control parameters, we compared the impact of both interpersonal distance and relative velocity on the pattern-forming dynamics of attacker–defender dyads in the sport of rugby union. Results revealed that when interpersonal distance achieved a critical value of less than 4 m, and relative velocity values increased or were maintained above 1 m s71, a successful outcome (i.e. clean attempt) for an attacker was predicted. Alternatively, when values of relative velocity suddenly decreased below this threshold, at the same critical value of interpersonal distance, a successful outcome for the defender was predicted. Data demonstrated how the coupling of these two potential, nested control parameters moved the dyadic system to phase transitions, characterized as a try or a tackle. Observations suggested that relative velocity increased its influence on the organization of attacker–defender dyads in rugby union over time as spatial proximity to the try line increased.

Impact and interest:

88 citations in Scopus
Search Google Scholar™
71 citations in Web of Science®

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

ID Code: 18136
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: Interpersonal coordination dynamics, Nested control parameters, Phase transitions, Pattern formation, Rugby union
DOI: 10.1080/02640410802208986
ISSN: 0264-0414
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > HUMAN MOVEMENT AND SPORTS SCIENCE (110600) > Motor Control (110603)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Exercise & Nutrition Sciences
Deposited On: 26 Apr 2009 22:07
Last Modified: 29 Feb 2012 13:43

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page