Thirst-Guided hydration studied in Ultra-Trail runners

NCT ID NCT02519764

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study followed 198 runners in the 2015 Ultra-Trail Mont-Blanc to see if drinking only when thirsty ("at thirst") keeps blood sodium levels more stable compared to other drinking plans. The goal is to understand how hydration affects health during extreme endurance events. Results may help guide safer hydration advice for athletes.

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Conditions

The condition(s) this trial relates to.

tinea pedis

As listed by the trial registrant

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

Contacts and locations

Locations

  • CHRU de Nîmes - Hôpital Universitaire Carémeau

    Nîmes, 30029, France

  • CHU de Nice - Hôpital St-Roch

    Nice, 06001, France