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Tests sodium bicarbonate effects on competitive finswimmers' race performance

Tests a single dose of sodium bicarbonate against placebo in national-level finswimmers.

Plain-language title generated from the registry record
Registry title: Effects of Single Sodium Bicarbonate Supplementation on National-Level Finswimming Performance

Key facts

Where
Olomouc, CzechiaSee the site

Could this be for you?

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 15 and 30 years old?

Source: NCT07135934, who can take part

Where in Czechia

  • Palacký University, Faculty of Physical CultureOlomouc, CzechiaTaking people

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?
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Trial details

Who runs it
Palacky University
Trial code
NCT07135934
Record updated
22 August 2025
Original description
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.Read full original descriptionShow less

Evaluation of the Effects of Single Sodium Bicarbonate Supplementation on Finswimming Performance of National Level Finswimmers: A Randomized, Double-Blind, Placebo-Controlled Crossover Study

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.

Inclusion: 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: 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).

ClinicalTrials.gov NCT07135934