Frozen run: scientists test blood changes after exercising in -10°C
NCT ID NCT07664072
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested how a single bout of running in extreme cold (-10°C) affects red blood cell clumping in 30 healthy young men. Half ran in a cold chamber, half in neutral air. Researchers measured blood samples to see how cold exercise changes blood flow and oxygen transport. The study is complete and purely observational, with no treatment or health benefit tested.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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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
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30 people
The number who actually took part.
- Started
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May 2024
- Finished
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May 2024
- Lead sponsor
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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
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22 to 23 years
- Sex
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Male participants only
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: \- Healthy men Exclusion Criteria: * women
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Genom att skicka in godkänner du våra Användarvillkor
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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University of Physical Culture
Krakow, Lesser Poland Voivodeship, 31-571, Poland
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