Effects of Single Sodium Bicarbonate Supplementation on National-Level Finswimming Performance
Evaluation of the Effects of Single Sodium Bicarbonate Supplementation on Finswimming Performance of National Level Finswimmers: A Randomized, Double-Blind, Placebo-Controlled Crossover Study
Palacky University
20 participants
Jul 1, 2025
INTERVENTIONAL
Summary
This randomized, double-blind, placebo-controlled crossover trial will investigate the acute effects of sodium bicarbonate supplementation on performance, stroke biomechanics, and selected physiological and perceptual responses during a simulated 200-meter Bi-Fins race in elite finswimmers.
Eligibility
Inclusion Criteria6
- Member of a wider national selection in finswimming (junior or senior level)
- Regular participation in competitive finswimming training (≥4 sessions per week)
- Age between 15 and 30 years
- Absence of chronic illness or injury
- No use of medications or dietary supplements during the study period
- Signed informed consent (for minors, also signed by a legal guardian)
Exclusion Criteria5
- History of gastrointestinal disorders affecting supplement tolerance
- Presence of cardiovascular, metabolic, or musculoskeletal disorders
- Current illness or acute infection
- Regular use of substances that may interfere with acid-base balance
- Refusal to comply with pre-test restrictions (e.g., 48 hours without training)
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Interventions
Gelatin capsules each containing 1g sodium bicarbonate (NaHCO₃)
Gelatin capsules each containing 1g food-grade starch
Locations(1)
View Full Details on ClinicalTrials.gov
For the most up-to-date information, visit the official listing.
NCT07135934