Trial reportJournal of the International Society of Sports Nutrition2026
Short-term
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
4 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundPremenstrual symptoms may negatively influence psychological readiness, cognitive-motor performance, and perceived exertion in female athletes. Rhodiola rosea (RR) is an adaptogenic herb that has been investigated for its potential effects on fatigue, stress tolerance, mood, and exercise-related outcomes. However, its effects on premenstrual symptoms and performance-related responses in female athletes remain unclear. This study aimed to investigate the effects of short-term RR supplementation during the estimated symptomatic premenstrual phase on premenstrual symptoms, peripheral serum serotonin and gamma-aminobutyric acid (GABA) concentrations, reaction time, perceived exertion, and aerobic performance-related indices in female taekwondo athletes with premenstrual syndrome (PMS).
methodsIn this randomised, double-blind, placebo-controlled trial, 24 female taekwondo athletes with moderate-to-severe PMS symptoms were randomly assigned to receive either 500 mg/day of standardised RR extract (
resultsCompared with placebo, RR supplementation significantly reduced several PMS symptoms, including irritability, depression, anxiety, social withdrawal, decreased concentration, hypersomnia, food cravings, crying, skin problems, and abdominal pain (
conclusionShort-term RR supplementation during the estimated symptomatic premenstrual phase may improve selected PMS symptoms, visual reaction time, and perceived exertion in female taekwondo athletes with PMS. Larger trials with hormonal confirmation of menstrual cycle phase, longer intervention periods, direct physiological measurements, and sport-specific performance assessments are required to confirm these findings.
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