Trial reportJournal of the International Society of Sports Nutrition2026
Effects of acute HMB-FA supplementation on antioxidant status and muscle damage in Elite Judoka: a randomized pilot trial.
Trial report in Journal of the International Society of Sports Nutrition, 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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeHigh-intensity judo bouts induce oxidative stress and muscle damage, impairing recovery. This randomized, double-blind, placebo-controlled pilot trial examined whether acute
methodsTwenty-two male elite judoka were randomized to HMB-FA (1.0 g BetaTOR®) or placebo. Supplements were ingested after four simulated Olympic judo bouts. Blood was sampled pre-exercise, post-fourth bout, and 2 h post-bout for creatine kinase (CK), lactate dehydrogenase (LDH), catalase (CAT), glutathione peroxidase (GPX), superoxide dismutase (SOD), malondialdehyde (MDA), and total antioxidant capacity (TAC). Twenty-one completed the protocol (one placebo dropout due to injury). Data were analyzed via 2 × 3 mixed ANOVA with partial
resultsNo group differences were seen for CK, MDA, or TAC (
conclusionAcute post-exercise HMB-FA supplementation in elite judo athletes did not significantly influence muscle damage or oxidative stress markers but transiently increased antioxidant enzyme activities (CAT, GPX, and SOD). These findings suggest an enzyme-specific effect and highlight the need for future studies using more precise oxidative-stress markers and cellular assays to better evaluate antioxidant responses; however, these effects should be interpreted with caution due to potential limitations related to assay sensitivity and the timing of measurements.
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