Journal of Sports Science and Medicine
Journal of Sports Science and Medicine


Journal of Sports Science and Medicine
ISSN: 1303 - 2968
       SCImago 2016     SJR: 0.981   Cites per Doc. 2-Year: 2.04    3-Year: 2.17
JCReports 2016
    IF 2-Year: 1.797    3-Year: 1.970    5-Year: 2.061    Average Citations PI: 7.7
©Journal of Sports Science and Medicine (2016) 15, 601 - 605
Research article
Sleep Quality, Mood and Performance: A Study of Elite Brazilian Volleyball Athletes
Alexandro Andrade1,, Guilherme G. Bevilacqua1, Danilo R. Coimbra1, Fabiano S. Pereira1, Ricardo Brandt2

1 Santa Catarina State University, Brazil
2 Western Paraná State University, Brazil

Alexandro Andrade
✉ Santa Catarina State University, Center of Health and Sports Sciences, Brazil

22-07-2016 -- Accepted: 15-08-2016 --
Published (online): 01-12-2016


This investigation analyzed the relationships between sleep quality, mood, and game results in the elite athletes participating in Brazilian volleyball competitions. Participants (n = 277 elite Brazilian volleyball athletes, 214 (77.3%) men and 63 (22.7%) women) completed the Brunel Mood Scale (BRUMS) and reported their subjective sleep perception. Athletes with poor sleep quality reported higher scores for confusion compared to athletes with good sleep quality (p < 0.01, d = 0.43). In addition, athletes who lost their game at the time of evaluation showed higher tension (p < 0.01, d = 0.49) and confusion (p < 0.01, d = 0.32) levels compared to athletes who won their game. A regression analysis demonstrated that for each point increase in the confusion level, there was a 19.7% reduction in sleep quality. Multivariate analysis of variance indicated that athletes who slept well, and won their games, had lower tension levels. Further, our results indicated that the athletes’ mood associated with their success in the competitions. Therefore, in a competition, it is important that the athletes show good sleep quality, and use techniques and strategies to ease their mood variations.

Key words: Competition, psychology, team sport
Key Points
Study evaluated Self-Rated sleep quality, mood and performance of 277 elite Brazilian volleyball athletes.
Our results indicated that for every pointwise increase in the level of confusion, there was an associated 19.7% reduction in sleep quality
Athletes who slept well, and won their games, had lower tension levels.



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