Can temperature mess with your breathing and brain? new study investigates
NCT ID NCT07470086
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how being in hot or cold environments changes how hard it feels to breathe and how well you think when breathing is difficult. Fifteen healthy adults will do breathing tasks in different temperatures. The goal is to understand, not to treat or cure any condition.
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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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About 15 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Oct 2028
An estimate. Start dates often move.
- Expected to finish
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Dec 2029
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 40 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: * Between the ages of 18-40 years old. * English speaking and reading. * Self-reported weekly activity of at least 120 minutes/week of high intensity exercise for the previous 2 years. * Normal pulmonary function assessed by a resting forced expiratory volume in 1 second over forced vital capacity (FEV1/FVC) \> 75% of predicted. * Normal cognitive function assessed using the Montreal cognitive function test \[18\]. * Body mass index (BMI) ≤ 35 kg/m2. * Females with a regular menstrual cycle that ranges from 21-35 days (eumenorrhea) Exclusion Criteria: * History of smoking or recreational smoking, cardiovascular disease, renal disease, pulmonary disease (including asthma or exercise-induced asthma), neurological disease, and metabolic disease. * Are pregnant or could possibly be pregnant by self-report. * Are color blind. * Known allergy or hypersensitivity latex. * Take selective serotonin reuptake inhibitors, stimulant medication, antibiotics, and chronically consume pain medication (Aleve, Tylenol, etc.). * Resting blood pressure of \> 130mmHg systolic or 90 mmHg diastolic and/or resting pulse rate of \> 100 bpm. * Females with irregular menstrual cycles (oligomenorrhea) that ranges from 36-90 days, and females with the absence of a menstrual cycle (amenorrhea). * Taking birth control for the sole purpose of period cessation (eg., Mirena IUD)
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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.
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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Multidisciplinary Engineering and Sciences Hall (MESH)
Bloomington, Indiana, 47405, United States
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