Cooling vest could keep weekend warriors safe in scorching heat
NCT ID NCT07539714
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether wearing a special cooling vest before exercise can help recreational athletes handle hot, humid conditions better. Thirty non-regularly trained adults will exercise in a hot lab, with and without the vest, while researchers measure heart rate, skin temperature, and perceived effort. The goal is to see if pre-cooling can reduce heat strain and improve safety for weekend athletes.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Temperature-controlled cooling vest
- What this could lead to
- If effective, this cooling vest could offer a simple, non-fatiguing way for recreational athletes to exercise more safely in hot weather.
- What could go wrong
- This is a small, early-stage study with only 30 participants. The cooling vest may not provide significant benefits, and results may not apply to all athletes or real-world conditions.
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 30 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2026
- Expected to finish
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May 2027
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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20 to 50 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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: * Age 20-50 years. * In the past 6 months, endurance exercise less than three times per week, 40-60 min each session. * No cardiovascular, metabolic (e.g., diabetes), or neurological disorders, and no diseases affecting vascular regulation. * No medication affecting vascular tone within the last 3 months. * No major musculoskeletal injuries or disorders affecting performance within the last 3 months. Exclusion Criteria: * • Diabetes, hypertension, or peripheral vascular disease. * Long-term work in hot environments. * BMI \> 30 kg/m², smoking, or heavy alcohol use. * Allergic reactions triggered by heat or cold (e.g., hives).
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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.
Contacts and locations
Locations
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Cooling Vest
Kaohsiung City, Sanmin, 807, Taiwan
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