Caffeine use in a Super Rugby game and its relationship to post-game sleep

Ian C. Dunican, Charles C. Higgins, Maddison J. Jones, Michael W. Clarke, Kevin Murray, Brian Dawson, John A. Caldwell, Shona L. Halson, Peter R. Eastwood

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)


Objective: To examine the relationship between regular game-related caffeine consumption on sleep after an evening Super Rugby game. Methods: Twenty elite rugby union players wore a wrist-activity monitor to measure sleep for three days before, three days after and on the night of an evening Super Rugby game (19:00–21:00). Players ingested caffeine as they would normally (i.e. before and sometimes during a game) and saliva samples were collected before (17:00) and after (21:30) the game for caffeine concentration. Results: Compared to the nights leading up to the game, on the night of the game, players went to bed 3 h later (23:08 ± 66 min vs 02:11 ± 114 min; p 

Original languageEnglish
Pages (from-to)513-523
Number of pages11
JournalEuropean Journal of Sport Science
Issue number4
Early online date13 Feb 2018
Publication statusPublished - 21 Apr 2018


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