ArticleFrontiers in psychology2026
Sleep quality in Olympic and non-Olympic combat sports: associations with sex, rapid weight loss, and sport age (a PSQI-based analysis).
Article in Frontiers in psychology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Sleep quality is an important component of recovery and performance in athletes. Combat sport athletes may be at increased risk of sleep disturbances due to high training demands and weight-management practices. Methods: This cross-sectional study included 498 athletes competing in Olympic and non-Olympic combat sports (mean age ≈21 years). Poor sleep quality (PSQI > 5) was examined using multivariable logistic regression to assess associations with sex, sport type, rapid weight loss (>4%), and sport age. A secondary model was conducted in the Olympic subsample. Continuous sleep outcomes were analyzed using two-way ANOVA. Results: Poor sleep quality was common among athletes, with 65% of participants classified as poor sleepers (PSQI > 5). In the full sample, male sex (OR = 1.65, 95% CI: 1.20-2.30), Olympic sport participation (OR = 1.75, 95% CI: 1.25-2.45), and rapid weight loss >4% (OR = 2.70, 95% CI: 1.80-4.00) were associated with higher odds of poor sleep quality, and sport age was also positively associated (OR = 1.03, 95% CI: 1.01-1.05). Similar associations were observed in the Olympic subsample. In addition, athletes competing in Olympic combat sports showed higher scores across several PSQI components compared to those in non-Olympic disciplines. Conclusion: Poor sleep quality is common among combat sport athletes and is associated with sport type and weight-management practices. These findings suggest that sleep disturbances may be related to sport-specific demands. Further research using longitudinal designs and objective sleep measures is needed to clarify these associations.
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