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The Effect of Individual Sodium Citrate Consumption on Repeated Sprint Performance in Female Soccer Players
Sponsor: Hacettepe University
Summary
The aim of this research is to determine whether sodium citrate supplementation, taken at the best individual time, would improve repeated sprint performance in professional female soccer players. The main questions it aims to answer are: 1. Does sodium citrate improve sprint times, peak power, minimum power, and mean power during repeated sprints? 2. Does sodium citrate lower fatigue index (the drop in power across sprints) during repeated sprint exercise? 3. Does sodium citrate change blood bicarbonate, pH, and lactate levels before and after exercise? 4. Does sodium citrate affect how hard exercise feels (perceived exertion)?
Official title: The Acute Effects of Individually Timed Sodium Citrate Ingestion on Repeated Sprint Performance in Professional Female Soccer Players: A Randomized, Double-Blind, Placebo-Controlled Crossover Study
Key Details
Gender
FEMALE
Age Range
18 Years - 25 Years
Study Type
INTERVENTIONAL
Enrollment
20
Start Date
2026-08-20
Completion Date
2027-02-01
Last Updated
2026-07-30
Healthy Volunteers
Yes
Interventions
Sodium Citrate Oral Product
0.5 g/kg body weight of sodium citrate dissolved in flavored water, ingested orally. Exercise begins at individual peak blood bicarbonate time (T\_peak), determined through serial capillary blood sampling starting 90 minutes post-ingestion.
Placebo
Sodium chloride (NaCl) at a taste-matched dose dissolved in flavored water, ingested orally. Exercise begins 120-150 minutes post-ingestion.