Sleep patterns and alertness in an elite super rugby team during a game week
Journal article
Dunican, Ian C., Higgin, Charles C., Murray, Kevin, Jones, Maddison J., Dawson, Brian, Caldwell, John A., Halson, Shona L. and Eastwood, Peter R.. (2019). Sleep patterns and alertness in an elite super rugby team during a game week. Journal of Human Kinetics. 67(1), pp. 111-121. https://doi.org/10.2478/hukin-2018-0088
Authors | Dunican, Ian C., Higgin, Charles C., Murray, Kevin, Jones, Maddison J., Dawson, Brian, Caldwell, John A., Halson, Shona L. and Eastwood, Peter R. |
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Abstract | Sleep is a vital component of preparation, performance and recovery for a Super Rugby game. The purpose of this study was to quantify sleep behaviours and alertness of professional rugby union players during training and a game. Thirty-six rugby union players from a Super Rugby team wore a wrist-activity device (Readiband™) to measure sleep for 3 days before, 3 days after and on the night of an evening game. Players were separated into those selected to play the game (n = 23) and those who were not (n = 13). Alertness was assessed for all training and game times using bio-mathematical modelling. Alertness measures ≤90% were considered to reflect impaired reaction time. Those selected to play in the game progressively increased sleep duration over the nights prior to the game (by 92 min p ≤ 0.05) by delaying wake time. Players went to bed later after the game (02:20 ± 114 min vs 22:57 ± 60 min; p ≤ 0.001) which resulted in decreased sleep duration on game night compared to pre-game nights (296 ± 179 min vs 459 ± 78 min; p ≤ 0.05). Four players did not achieve any sleep on game night. Sleep duration appeared to be truncated by early morning training sessions (before 08:00) on the second and third mornings after the game. Alertness was >90% for all training and game times for all players. In conclusion, in the days leading into a Super Rugby game, players delay morning time at wake and consequently increase sleep duration with post-game sleep reduced in some. |
Keywords | alertness; recovery; actigraphy; athletes |
Year | 2019 |
Journal | Journal of Human Kinetics |
Journal citation | 67 (1), pp. 111-121 |
Publisher | Sciendo |
ISSN | 1640-5544 |
Digital Object Identifier (DOI) | https://doi.org/10.2478/hukin-2018-0088 |
Scopus EID | 2-s2.0-85069660433 |
Research or scholarly | Research |
Page range | 111-121 |
Funder | National Health and Medical Research Council (NHMRC) |
Publisher's version | License All rights reserved File Access Level Controlled |
Output status | Published |
Publication dates | |
Online | 05 Jul 2019 |
Publication process dates | |
Accepted | Jun 2019 |
Deposited | 04 Jun 2021 |
Grant ID | NHMRC/513704 |
https://acuresearchbank.acu.edu.au/item/8w299/sleep-patterns-and-alertness-in-an-elite-super-rugby-team-during-a-game-week
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