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Can Kids' bodies beat the heat as well as adults? a new study investigates

NCT ID NCT07781605

Knowledge-focused Sponsor: University of Ottawa Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 24, 2026 · Last updated Aug 25, 2026 · Updated 1 time

Summary

This study asks whether children and youth aged 9-16 years regulate body temperature during exercise differently than young adults aged 20-25 years. Participants will exercise at four different room temperatures, from a cool 22°C to a hot 36°C, while researchers measure how much heat they lose and store. The goal is to understand how ambient temperature affects kids' ability to cool down during physical activity.

What this could mean

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

Active substance
Exercise at different ambient temperatures (22°C, 26°C, 31°C, 36°C)
What this could lead to
If it works, this could help design better heat-safety guidelines for exercise in children and youth.
What could go wrong
This is a small, early-stage study with only 12 participants, so results may not apply to all kids or real-world settings.

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

About 12 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jul 2026

Expected to finish

Jun 2027

An estimate. End dates often move.

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

9 to 25 years

Sex

Anyone

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: * Healthy male or female. * Aged 9-16 years or 20-25 years. * Habitually active, defined as participating in regular physical activity at least 3 times per week for at least 20 minutes per session over the previous 6 months. * Able to understand and communicate in English or French. * For participants younger than 18 years, written parental or guardian consent and participant assent are required. Exclusion Criteria: * Acute illness at the time of testing (e.g., cold, flu, or infection). * History of a chronic medical condition that may affect thermoregulation, cardiovascular function, or exercise capacity (e.g., cardiovascular disease, metabolic disorders, respiratory disease including asthma requiring regular medication, or neurological disorders). * Use of medications known to affect thermoregulation, hydration status, or cardiovascular responses. * History of heat-related illness (e.g., heat exhaustion or heat stroke). * Digestive abnormalities or gastrointestinal conditions that may contraindicate ingestion of a telemetry pill. * Any condition that, in the opinion of the investigators, would compromise participant safety or the integrity of the data.

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Conditions

The condition(s) this trial relates to.

Body Temperature Changes Heat Stress Disorders miliaria Motor Activity

As listed by the trial registrant

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

Body temperature changes Child development HEAT Heat stress Physiological stress

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • University of Ottawa

    RECRUITING

    Ottawa, Ontario, K1N 6N5, Canada

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