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NCT02980939 · ClinicalTrials.gov registry record · NA

The Role of Hydration on Exercise Performance - ODIN

A NA study, sponsored by University of Arkansas, Fayetteville.

Completed
Registry status
NA
Development phase
11
Enrollment target

NCT02980939: Completed NA study, sponsored by University of Arkansas, Fayetteville.

NCT02980939 is a NA study that has completed, run by University of Arkansas, Fayetteville. The registered enrollment target is 11 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (99% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT02980939, a NA study, has completed, sponsored by University of Arkansas, Fayetteville.

COMPLETED
Registry status
NA
Development phase
11 participants
Enrollment target

Study Summary

During exercise in the heat, there is a need to replenish fluids in order to avoid dehydration and decrease the risk for heat illness. What drives this urge to drink is the thirst mechanism. Following ingestion of fluids, there is an inhibition of thirst before there is a replenishing of fluids. However, there is little scientific evidence of where thirst is inhibited, if this thirst inhibition is augmented by exercise and how thirst itself influence exercise performance. Further, during rehydration studies, it is very difficult to successfully blind a subject to their drinking/hydration protocol. Previous studies that have blinded a subject to their drinking have used various methods such as intravenous fluid administration and/or nasogastric tubes. Therefore, the purpose of this research is to examine the mechanistic roles thirst inhibition plays while exercising in the heat while undergoing intravenous fluid administration. Specific attention will be directed to the cardiovascular and thermoregulatory function of the individuals. All blood, cardiovascular, thermoregulatory, and perceptual measures are shown in the diagram below.

Primary Outcome

Time to completion 5 km cycling time trial in the heat

Interventions

  • OTHER iv fluid infusion

Trial Details

FieldValue
Enrollment Target 11 participants
Start Date 2016-11
Est. Completion 2017-03-18
Phase NA

What the finished NCT02980939 record still lists

NCT02980939 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 11 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (99% lower).

The record links to 0 conditions, and to 1 intervention - of which iv fluid infusion is the first listed.

NCT02980939 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT02980939 about?

NCT02980939 is a clinical study titled "The Role of Hydration on Exercise Performance - ODIN". During exercise in the heat, there is a need to replenish fluids in order to avoid dehydration and decrease the risk for heat illness. What drives this urge to drink is the thirst mechanism. Following ingestion of fluids, there is an inhibition of thirst before there is a replenishing of fluids. How...

What is the current status of trial NCT02980939?

This trial is currently completed. It is a NA study. The enrollment target is 11 participants. The study started on 2016-11. Estimated completion is 2017-03-18.

What interventions are being tested in trial NCT02980939?

The interventions under investigation include: iv fluid infusion (OTHER).

Who is sponsoring clinical trial NCT02980939?

This trial is sponsored by University of Arkansas, Fayetteville, which has 25 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT02980939's enrollment target sits among peer trials

11 1927th of 2000 higher than 74 of 2,000 other NA trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT02980939, the US trial registry maintained by the National Library of Medicine. NCT02980939 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.