Document Detail

Match Analysis and Temporal Patterns of Fatigue in Rugby Sevens.
MedLine Citation:
PMID:  23722109     Owner:  NLM     Status:  Publisher    
Rugby sevens is a rapidly growing sport. Match analysis is increasingly being used by sport scientists and coaches to improve the understanding of the physical demands of this sport. This study investigated the physical and physiological demands of elite men's rugby sevens, with special reference to the temporal patterns of fatigue during match-play. Nine players, four backs and five forwards (age 25.1±3.1 yrs) participated during two "Roma 7" international tournaments (2010 and 2011). All players were professional level in the highest Italian rugby union, and five of these players also competed at the international level. During the matches (n=15) players were filmed in order to assess game performance. Global positioning system (GPS), heart rate (HR), and blood lactate (BLa) concentration data were measured and analyzed. The mean total distance covered throughout matches was 1221±118m (first half = 643±70m and second half = 578±77m; with a decrease of 11.2%, p>0.05, Effect Size = 0.29). Players achieved 88.3±4.2% and 87.7±3.4% of HR max during the first and second half, respectively. The BLa for the first and second half was 3.9±0.9 mmol·L and 11.2±1.4 mmol·L, respectively. The decreases in performance occurred consistently in the final 3 minutes of the matches (-40.5% in distance covered per minute). The difference found in relation to the playing position, although not statistically significant (p=0.11), showed a large ES (η=0.20), suggesting possible practical implications. These results demonstrate that rugby sevens is a demanding sport that places stress on both the anaerobic glycolytic and aerobic oxidative energy systems. Strength and conditioning programs designed to train these energy pathways may prevent fatigue-induced reductions in physical performance.
Giampietro Granatelli; Tim J Gabbett; Gianluca Briotti; Johnny Padulo; Antonio Buglione; Stefano D'Ottavio; Bruno Ruscello
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-5-29
Journal Detail:
Title:  Journal of strength and conditioning research / National Strength & Conditioning Association     Volume:  -     ISSN:  1533-4287     ISO Abbreviation:  J Strength Cond Res     Publication Date:  2013 May 
Date Detail:
Created Date:  2013-5-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9415084     Medline TA:  J Strength Cond Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
1University of Rome "Tor Vergata", Faculty of Medicine and Surgery, School of Sports and Exercise Sciences, ITALY 2 School of Exercise Science, Australian Catholic University, Brisbane, AUSTRALIA 3 School of Human Movement Studies, The University of Queensland, Brisbane, AUSTRALIA.
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