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NCT04613856 · ClinicalTrials.gov registry record · NA

Water Bolus Volumes During Continuous Exercise in Heat

A NA study, sponsored by State University of New York at Buffalo.

Completed
Registry status
NA
Development phase
16
Enrollment target

NCT04613856: Completed NA study, sponsored by State University of New York at Buffalo.

NCT04613856 is a NA study that has completed, run by State University of New York at Buffalo. The registered enrollment target is 16 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

NCT04613856, a NA study, has completed, sponsored by State University of New York at Buffalo.

COMPLETED
Registry status
NA
Development phase
16 participants
Enrollment target

Study Summary

Hydration is important to all individuals including occupational workers who complete physical activity in the heat. Current best practice guidelines suggest drinking a cup of water every 15-20 minutes during activity in a hot environment, but research shows this may not be ideal for best maintaining hydration. The goal of this study is to determine if larger, more frequent water boluses better maintain hydration than smaller, less frequent water boluses during moderate intensity physical activity in the heat.

Primary Outcome

Percent body mass loss after water intake

Interventions

  • OTHER Hydration protocol - 237 mL water bolus
  • OTHER Hydration protocol - 500 mL water bolus

Trial Details

FieldValue
Enrollment Target 16 participants
Start Date 2019-04-17
Est. Completion 2020-03-12
Phase NA

What the finished NCT04613856 record still lists

NCT04613856 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 16 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 2 interventions - of which Hydration protocol - 237 mL water bolus is the first listed.

NCT04613856 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT04613856 about?

NCT04613856 is a clinical study titled "Water Bolus Volumes During Continuous Exercise in Heat". Hydration is important to all individuals including occupational workers who complete physical activity in the heat. Current best practice guidelines suggest drinking a cup of water every 15-20 minutes during activity in a hot environment, but research shows this may not be ideal for best maintainin...

What is the current status of trial NCT04613856?

This trial is currently completed. It is a NA study. The enrollment target is 16 participants. The study started on 2019-04-17. Estimated completion is 2020-03-12.

What interventions are being tested in trial NCT04613856?

The interventions under investigation include: Hydration protocol - 237 mL water bolus (OTHER), Hydration protocol - 500 mL water bolus (OTHER).

Who is sponsoring clinical trial NCT04613856?

This trial is sponsored by State University of New York at Buffalo, which has 243 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT04613856's enrollment target sits among peer trials

16 1871st of 2000 higher than 120 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 NCT04613856, the US trial registry maintained by the National Library of Medicine. NCT04613856 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.