The Impact of Self-assessment on Hydration
Enrolling by invitation · Not applicable
Conditions studied: Hydration Status
In brief
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.
Key facts
- Study ID
- NCT06954909
- Run by
- Arizona State University
- People needed
- 38
- Starts
- 2025-04-22
- Expected to finish
- 2026-12-30
- Last updated by the study team
- 2026-05-08
Who can join
Age: 18 and older, up to 65. Sex: any. Healthy volunteers: accepted.
You may qualify if…
- Age 18-65 years
- Identifying as male, female or other
You may not qualify if…
- Thyroid medication
- Bariatric surgery
- Cardiovascular disease
- Renal disease
- Hepatic disease
- Bodyweight <110 lbs.
- Any injury that would not allow physical performance or activity
- Pregnant or lactating
- Diuretics
- Non-stable self-reported body weight for the last month (<10 lbs. fluctuation)
- Investigators will not exclude participants reporting the use of dietary supplements as there is no evidence that the accuracy of self-assessment (specifically the accuracy of urine color assessment) to determine a low vs. high urine concentration is influenced by dietary supplement use, but participants will be questioned about their supplement, electrolyte and sport drink use.
Where it is running
- ASU Health Futures Center — Phoenix, Arizona, United States
Full record on ClinicalTrials.gov
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