Abstract：
OBJECTIVES:We investigated the level of cardiovascular stress associated with professional rugby union and whether these changes could be explained through external workload systems like GPS and video analysis. DESIGN:Urine samples (14 in game one and 13 in game two) were collected from professional rugby players before, immediately post- and 36h post-play in two consecutive games. METHODS:Urine was analysed for NT-proBNP by ELISA. Comparison with GPS (player-load and distance covered at specific speed bands) and video analysis (total impacts) were conducted. RESULTS:There was a significant increase in urinary NT-proBNP during game one (31.6±5.4 to 53.5±10.8pg/mL) and game two (35.4±3.9 to 49.8±11.7pg/mL) that did not correlate with the number of impacts, total distance covered, distance covered at pre-determined speed bands or player-load. Concentrations returned to pre-game concentrations 36h post-game whilst a large inter-individual variation in NT-proBNP was observed among players (p<0.001). CONCLUSIONS:Professional rugby union causes a transient increase in cardiovascular stress that seems to be independent of the external workload characteristics of a player.
journal_name
J Sci Med Sportjournal_title
Journal of science and medicine in sportauthors
Lindsay A,Lewis JG,Gill N,Draper N,Gieseg SPdoi
10.1016/j.jsams.2016.11.017subject
Has Abstractpub_date
2017-08-01 00:00:00pages
790-794issue
8eissn
1440-2440issn
1878-1861pii
S1440-2440(17)30252-9journal_volume
20pub_type
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