A Three-Dimensional Analysis of Rugby Passing to the Preferred and Non-Preferred Side.

Forbes, Russell (2016) A Three-Dimensional Analysis of Rugby Passing to the Preferred and Non-Preferred Side. Undergraduate thesis, University of Chichester.

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As the majority of individuals are right handed, it is proposed that passing a rugby ball to the left is the preferred direction for many (Wallace, 1976). Biomechanical research has found that when passing to the non-preferred direction, individuals will often employ compensatory actions in order to generate power on the pass (Sayers & Ballon, 2011). However, no research has investigated the inter-individual differences that exist between playing positions in such research. In an ideographic design, kinematic variables of three rugby union players (fly-half, centre and full-back) were when passing to the preferred and non-preferred side. Three-dimensional (3D) motion analysis was used to measure joint range of motion (RoM) and coordination variability in the elbow and shoulder joints, body drop and movement time (MT). All participants exhibited greater RoM in shoulder adduction/abduction in the leading arm when passing to their non-preferred side (P1 +7.13°, P2 +16.33°, P3 +6.46°) with Participants 1 and 2 exhibiting a compensatory stretch shorten cycle in the leading shoulder prior to passing the ball to their non-preferred side. Participant 3 exhibited a sharp shoulder flexion, as opposed to shoulder abduction in the final stages of the pass. Participants 1 and 2 exhibited higher elbow flexion/extension RoM of the trailing arm when passing to the non-preferred side (P1 +49.17°, P2 +24.93°) and exhibited a sharp increase in flexion towards the end of the movement, potentially compensating for a weakness in the non-preferred, leading arm. All participants elicited a body drop technique in the final 10% of the movement when passing to the preferred side but not the non-preferred, whilst MT was longer in Participants 1 and 2 when passing to the non-preferred side. Angle-angle plots showed coordination variability in both shoulder abduction/adduction and flexion/extension with elbow flexion/extension, which was far less coordinated when passing to the non-preferred side. All participants demonstrated different passing techniques and compensatory actions when passing to the nonpreferred side, highlighting the existence of inter-individual differences when executing the rugby pass.

Item Type: Thesis (Undergraduate)
Additional Information: BSc (Hons.) Sport & Exercise Science (Sports Performance)
Subjects: Q Science > Q Science (General)
Divisions: Departments > Sport and Exercise Sciences
Undergraduate Dissertations
Depositing User: Ann Jones
Date Deposited: 29 Sep 2016 15:52
Last Modified: 29 Sep 2016 15:52
URI: http://eprints.chi.ac.uk/id/eprint/1980

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