The Impact of Self-assessment on Hydration

The studies objective is to assess the efficacy of hydration education and the use of a self-assessment worksheet vs. a no-intervention control on improving fluid intake and hydration status in underhydrated wildland firefighters (WLFFs) and their surrogates. Part I allows to understand hydration status of the participants (screening phase), Part II confirms if participants indeed are deemed to be low fluid consumers, and Part III of this research is a clinical trial that will focus on the optimization of hydration by improving fluid intake (and as a result lowering urine concentration) allowing participants theoretically to improve exercise performance (acute) and optimize health on the long term.

NCT Number	NCT06954909
Lead Sponsor	Arizona State University Collaborators: Federal Emergency Management Agency
Conditions	Hydration Status
Enrollment	38 participants
Start Date	2025-04-22
Primary Completion	2026-02-12 (estimated)
Study Completion	2026-12-30 (estimated)
Updated on ClinicalTrials.gov	2026-05-08