Sleep and mood of elite basketball referees during international competitions

Cullen, T., Clarke, N. D. and Vaquera, Alejandro (2022) Sleep and mood of elite basketball referees during international competitions. Sport Sciences for Health. ISSN Electronic: 1825-1234

Abstract

Purpose
The current study aimed to characterise the sleep habits of elite basketball referees during international competitions.

Methods
Sixty-five elite basketball referees (international experience: 6 ± 3 years) provided actigraph-derived sleep data and daily mood scores during an international competition. Referees were also asked to provide reasons for nights of poor sleep.

Results
Referee’s actual sleep time was 6:23 ± 1:07 (h:mm), with 70% sleeping less than 7 h. Sleep onset and offset got later as the tournament progressed, but with minimal impact on actual sleep time. Sleep onset was later following evening games than on Rest Days (50 min, P = 0.05) and after Day Games (64 min, P < 0.001), while sleep offset was not different, resulting in shorter actual sleep times following Evening Games than Rest Days (− 36 min, P = 0.027) and Day Games (− 47 min, P < 0.001). Subjective mood status was not affected by tournament stage or game timing. The most common factors identified by referees as leading to poor sleep were ‘jet lag’ and Evening Games (both 16%).

Conclusion
These results highlight poor sleep habits of elite sporting officials during the most important international sporting events. Poor sleep was exacerbated in evening fixtures due to increased arousal and a curtailed opportunity for sleep rather than competitive anxiety as is often the case with athletes. Future studies should build upon our findings by investigating potential countermeasures to the issues we have identified.

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