ArticleFrontiers in sports and active living2026
Association between antioxidant status and special strength performance in combat athletes: a cross-sectional study.
Article in Frontiers in sports and active living, 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: Combat sports involve repeated high-intensity, intermittent actions under direct competition. During competition, athletes must produce high power output repeatedly, with rapid energy-system transitions and substantial oxidative stress responses. Objective: This cross-sectional study examined associations between antioxidant-related indicators and special strength performance in combat athletes. Methods: A cross-sectional study design was used, recruiting 25 high-level combat athletes in training. We measured one energy-related marker [plasma adenosine triphosphate (ATP)], three antioxidant defense markers [total antioxidant capacity [T-AOC], superoxide dismutase [SOD], glutathione peroxidase [GPX]], and one oxidative damage marker [malondialdehyde (MDA)] and six special strength indicators [standing long jump, vertical jump, medicine ball throw, one-repetition maximum (1-RM) bench press, one-repetition maximum (1-RM) squat, 30 m sprint] were measured. Gender, height, weight, body fat percentage, and resting heart rate were included as covariates. Shapiro Wilk tests, Kruskal Wallis and Mann Whitney U tests, Spearman correlations, multiple linear regression, and Bayesian regression were applied. Results: Body fat percentage and SOD activity differed across sports ( Conclusion: Special strength outcomes were associated with markers related to energy availability and oxidative status. ATP and body fat percentage were the variables most consistently associated with explosive performance in this sample: ATP was positively associated with standing long jump and vertical jump, whereas body fat percentage was negatively associated with vertical jump performance. Differences in antioxidant indicators across sports and between sexes suggest that antioxidant status may vary with individual characteristics and sport-specific demands. These findings are hypothesis-generating and may inform future work on training, nutritional strategies, and pre-competition preparation, which should be tested in longitudinal or randomized controlled studies.
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