Acute effects of sodium citrate supplementation on competitive performance and lactate level of elite fitness challenge athletes: A crossover, placebo-controlled, double-blind study.

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"Funding Open Access funding enabled and organized by Projekt DEAL."

"The current research project was a double-blind, placebo-controlled, randomized, crossover study. Prior to the trial, all participants were informed about the risks and benefits of the fitness challenges test. They were told about the purpose of the study and signed an informed consent document. All tests were done in the afternoon at approximately 17:00 h. The temperature, humidity, and environmental conditions were similar across sessions (temperature: 22–25 °C; humidity: 59–66%). The research procedure was approved by the local University Research Ethics Committee of Imam Khomeini International (reference number 17629) and the study was registered on the Open Science Framework (OSF: https://doi.org/10.17605/OSF.IO/9KEAB) and was carried out in accordance with relevant guidelines and regulations of the 168 Declaration of Helsinki."