Can 26°C indoors keep active young adults safe from heat?
NCT ID NCT07267598
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study checks whether keeping indoor temperatures at 26°C is enough to protect young, habitually active adults from heat stress. Ten healthy volunteers aged 18-29 will spend 8 hours in a controlled warm room, either resting or doing light exercise while wearing extra clothing. Researchers will measure body temperature, heart rate, and other signs of strain to see if the current guideline works for this group.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If it works, this could help refine heat safety guidelines for young active adults during hot weather.
- What could go wrong
- This is a very small early study with only 10 participants, so results may not apply to everyone. It only looks at short-term effects, not long-term health.
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
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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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About 10 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Nov 2025
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- 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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18 to 29 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide 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: * Non-smoking. * English or French speaking. * Ability to provide informed consent. * Healthy young adults without chronic disease (e.g., type 1 diabetes, hypertension) Exclusion Criteria: * Endurance trained (i.e., engaged in regular physical training activities more than 3 times a week for more than 1 hour per session). * Undergoing passive heat exposures such as regular of saunas, warm-water immersion, other. * Use of or changes in medication judged by the patient or investigators to make participation in this study inadvisable. * Current pregnancy
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University of Ottawa
RECRUITINGOttawa, Ontario, K1N 6N5, Canada
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