Caffeine use in a Super Rugby game and its relationship to post-game sleep.
Ian C DunicanCharles C HigginsMaddison J JonesMichael W ClarkeKevin MurrayBrian DawsonJohn A CaldwellShona L HalsonPeter R EastwoodPublished in: European journal of sport science (2018)
Caffeine consumption before a Super Rugby game markedly increases post-game saliva caffeine levels. This may contribute to the observed 3.5 h delay in time at sleep onset and the 1.5 h reduction in sleep duration on the night of the game. This study highlights the need for a strategic approach to the use of caffeine within a Super Rugby team considering the potential effect on post-game sleep.