Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.637699
Title: Methodological advances for assessing individual and team performance in elite rugby union
Author: Jones, N. M. P.
Awarding Body: University of Wales Swansea
Current Institution: Swansea University
Date of Award: 2006
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Abstract:
Performance profiles, using performance indicators (PIs), were created from 22 matches of a professional male rugby union team using the Noldus ‘Observer Video-Pro’. A transformation to account for the time a player spent on the field was devised and the median and confidence limits for a population median suggested as appropriate. Significant differences were observed between individuals of the same position for the most frequent performance indicators suggesting that performance profiles are subject to an individual’s style of play. Twenty further matches, from the subsequent season, were analysed using modified PIs, off the ball behaviours and team PIs. Two of the team PIs (lineout success on the opposition throw and tries scored) were statistically different between wining and losing performances and only 1 of 13 players’ ball-in-hand behaviours differed significantly between the two seasons. A score for team performance was calculated by correlating values of 31 different PIs (over 20 matches) against two elite coaches’ assessment of performances. The PI scores were then multiplied with their correlation coefficient and combined to form a single score for match performance. Different models were tested based on correlation values and weather conditions for matches, i.e. wet and dry. The best model contained all indicators, mean bias for wet (4.18) and dry (1.14), correlation (r = 0.77 wet, 0.85 dry) and no significant difference (p= 0.35 wet, 0.88 dry) with coach scores. However variability in estimation suggested further research is needed to make this practically useful. 18 PIs form the 20th match were standardised relative to the previous 5 and 19 matches using medians and interquartile ranges (IQR’s). A ‘form chart’ was constructed with median and IQR plotted so that PIs could be compared on a single scale relative to previously accomplished standards. This is easily adaptable for any multi-faceted sport.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.637699  DOI: Not available
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