Injury in the triceps surae in Rugby Union players: a biomechanical analysis of front row players during scrummaging

Flavell, Carol, and Sayers, Mark (2010) Injury in the triceps surae in Rugby Union players: a biomechanical analysis of front row players during scrummaging. In: UNSPECIFIED. From: Queensland Injury Prevention Council – Evidence to Action Symposium, Townsville, Australia 18-19 November 2010 , 18 - 19 November 2010, James Cook University, Townsville, QLD, Australia. (Unpublished)

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Background: The incidence of injury to the triceps surae muscle (TS) in front row rugby union (rugby) players has stimulated a need to investigate the events surrounding this injury. Previous research has linked TS injuries with scrummaging, but mechanisms of injury remain unidentified. Purpose: The purpose of this study was to investigate the lower limb kinematics of a cohort of front row players during a series of scrummaging drills. It was hypothesized that analysing the biomechanics of this aspect of game play would provide understanding about the possible mechanisms for TS injury. Methodology: Eleven front row rugby players were videoed during a series of scrummaging drills. Land marked anatomical points were digitised and a three-dimensional model of the trunk and lower limb developed. Independent t-tests were conducted to determine if the lower limb kinematics differed between defensive and attacking scrummaging technique. All statistical analyses were performed using SPSS for Windows (version 17). A significance level of p < 0.05 was used for all analysis. Results and Discussion: Results (presented as mean ± SD) showed numerous significant differences in a range of variables between defensive and attacking scrum types. Analysis indicated a trend towards more extended joint positions at toe off and toe strike during scrum drills. For example, ankle angular displacement at toe off varied significantly (p < 0.001) between the attacking (126 deg [± 10]) and defensive scrum drills (111 deg [± 7]), as did ankle angular displacement at peak extension velocity during single leg stance (p = 0.024) between the attacking (108 deg [±12]) and defensive scrum drills (97 deg [± 9]).

Item ID: 16623
Item Type: Conference Item (Presentation)
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Date Deposited: 08 Apr 2011 06:12
FoR Codes: 11 MEDICAL AND HEALTH SCIENCES > 1106 Human Movement and Sports Science > 110604 Sports Medicine @ 100%
SEO Codes: 92 HEALTH > 9201 Clinical Health (Organs, Diseases and Abnormal Conditions) > 920116 Skeletal System and Disorders (incl. Arthritis) @ 100%
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