How does playing position affect fatigue-induced changes in high-intensity locomotor and micro-movements patterns during professional rugby union games?

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Serval ID
serval:BIB_1ADA52D50D40
Type
Article: article from journal or magazin.
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Publications
Institution
Title
How does playing position affect fatigue-induced changes in high-intensity locomotor and micro-movements patterns during professional rugby union games?
Journal
European journal of sport science
Author(s)
Fornasier-Santos C., Millet G.P., Stridgeon P., Brocherie F., Girard O., Nottin S.
ISSN
1536-7290 (Electronic)
ISSN-L
1536-7290
Publication state
In Press
Peer-reviewed
Oui
Pages
1-27
Language
english
Notes
Publication types: Journal Article
Publication Status: aheadofprint
Abstract
We questioned whether changes in high-intensity locomotor and micro-movements patterns between the first and second part of each half depend on playing position in the 2014-2015 European rugby union championship winning team. Thirty-three rugby players were grouped according to five playing positions. Players were equipped with micro-electromechanical system including a GPS sampling at 10 Hz and high temporal resolution micro-sensors during 17 Top14 and 7 European games. High-speed movements, high-intensity accelerations, repeated high-intensity efforts, and high-intensity micro-movements were subsequently compared between four 20-min game periods. No significant group × time interactions were observed for any locomotor variables (p > 0.283). Irrespectively of playing position, the number of high-speed movements (p = 0.019), decreased from 0-20 min to 60-80 min as well as from 40-60 min to 60-80 min (p < 0.001) with high-intensity accelerations (p = 0.020) and repeated high-intensity efforts (p < 0.001). Significant group × time interaction was found for high-intensity micro-movements (p = 0.03) with a significant decrease observed in back row forwards from 0-20 to 60-80 min periods (-17.5%; ES = 0.6; p = 0.031). In elite rugby union, fatigue-induced changes during the last twenty minutes are independent from playing positions in high-intensity locomotor patterns in contrary to high-intensity micro-movements. Training drills that include specific repeated high-intensity efforts (high-speed and high-intensity accelerations efforts) may be useful to postpone match-related fatigue.
Keywords
GPS, fatigue, locomotor patterns, micro-movements, rugby union
Pubmed
Create date
05/10/2020 14:51
Last modification date
16/02/2021 7:26
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