Timing is everything: could a common food additive give soccer players an extra sprint?

NCT ID NCT07737327

Not yet recruiting Symptom relief Sponsor: Hacettepe University Source: ClinicalTrials.gov ↗

First seen Jul 30, 2026 · Last updated Jul 31, 2026 · Updated 1 time

Summary

This trial tests whether taking sodium citrate at a personalized time — when blood bicarbonate peaks — can improve repeated sprint performance in professional female soccer players. Twenty players will receive either sodium citrate or a placebo before a series of maximal sprints. The study measures power output, fatigue, and blood markers to see if the supplement reduces fatigue and enhances performance.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: sodium citrate (trisodium citrate) dissolved in flavored water, taken at an individually timed peak blood bicarbonate point
What this could lead to: If it works, this could point toward a simple dietary supplement strategy to reduce fatigue and improve sprint performance in athletes.
What could go wrong: This is a small, early-stage trial in a specific group (professional female soccer players), so results may not apply to other athletes or sports. The supplement may cause gastrointestinal discomfort or have no effect.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

ATHLETIC PERFORMANCE EXERCISE-INDUCED FATIGUE SOCCER

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