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Can sleeping in thin air give rowers a blood boost?

NCT ID NCT06264193

NEW Knowledge-focused Sponsor: Poznan University of Physical Education Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Sep 21, 2026 · Last updated Sep 21, 2026

Summary

Researchers study how living in simulated altitude while training at normal oxygen levels affects blood markers in elite male rowers. Fourteen national-team rowers live in normobaric hypoxic rooms for 14 to 16 hours a day while completing their regular training under normal conditions. The study measures erythropoietin (EPO), vascular endothelial growth factor (VEGF), and other blood and physiological variables to understand individual responses to low oxygen.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
living in normobaric hypoxic rooms (simulated altitude) while training normally
What this could lead to
If the approach changes blood markers as hoped, it could help athletes and coaches plan altitude-style training more effectively. It may also inform how the body adapts to low oxygen in other settings.
What could go wrong
This is a small study of 14 elite male rowers, so results may not apply to other athletes or the general public. Blood marker changes do not always translate into better performance, and the hypoxic exposure carries some risk of discomfort or adverse symptoms.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

14 people

The number who actually took part.

Started

Nov 2014

Finished

Dec 2015

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Male participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Male national-team rowers aged ≥18 years. * Regular participation in rowing training. * Participation in the training camp. Exclusion Criteria: * Exposure to hypoxic conditions or altitude above 1500 m within 1 month before the study. * Medical contraindications or adverse symptoms associated with hypoxic exposure. * Injury or health condition preventing participation in the training program.

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Conditions

The condition(s) this trial relates to.

Hypoxia Motor Activity

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Hypoxia Normobaric hypoxia

More trials for these conditions

Other studies related to the condition(s) this trial covers.