Trial reportJournal of the International Society of Sports Nutrition2025
Topical carnosine gel improves intermittent high-intensity exercise performance in world-class rugby sevens players.
Trial report in Journal of the International Society of Sports Nutrition, 2025. 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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Abstract
backgroundThe topical application of a carnosine gel may increase intramuscular carnosine concentrations and thereby improve exercise performance. This study investigated the effect of a topical carnosine gel on intermittent high-intensity exercise performance in rugby sevens players.
methodsSeven world-class rugby sevens players (body mass: 97.5 ± 4.1 kg; 1,452 International caps) completed two performance tests in a counterbalanced, crossover, triple-blind design. Players applied either 10 mL of a topical carnosine gel (CAR) or an ultrasound placebo gel (PLA) 40 minutes before undertaking 12 intermittent sprints on a cycle ergometer, interrupted by a 2-minute break after Sprint 6. The activity profile was 24 s cycling at 3 W/kg, 6 s at maximal intensity sprint, followed by a 30s rest. Average power, peak power, and HR were recorded for every 6 s sprint. RPE was recorded at the end of Sprint 6 and Sprint 12.
resultsFor peak power, two-way ANOVA revealed time (
conclusionsTopical carnosine gel improved power production in world-class rugby sevens players. Future research should determine whether carno- sine gels increase intramuscular carnosine concentrations to support the observed improvements in anaerobic performance during high-intensity exercise.
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