Arizona State University
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.
Enrollment will take place until enough people have been screened and be eligible to be enrolled in PART III of the study. Aside from allowing the investigators to better understand the hydration status of participants in PART I, this part will help to determine potentially eligible participants that can be confirmed through PART II by collecting again a urine sample, and if again concentrated urine is confirmed the research team will take a 5 mL venous blood draw performed by a trained phlebotomist to confirm elevated a copeptin level. These confirmed participants can then be enrolled in PAR…
The study plans to include firefighters from the Tonto National Forest and the broader Phoenix Valley area, and if needed, other active populations that are similarly active to WLFFs. Participants with high urine concentration (≥1.020 USG) for both samples collected during Part I (screening phase), may be invited to provide an additional urine sample and a blood sample for copeptin analysis during a follow up day (Part II). Participants with elevated USG and copeptin are eligible to participate in the study. Inclusion for PART I is that participants are part of a by the research selected wild…
Hydration education is a 25-minute session based on the theory of planned behavior, including the instructions how to use a worksheet for hydration self-assessment and materials.
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