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NOT YET RECRUITING
NCT07864506
NA

Testing the Effects of Temperature & Humidity on Children With and Without Asthma in an Environmental Climatic Chamber

Sponsor: University of Ontario Institute of Technology

View on ClinicalTrials.gov

Summary

The goal of this clinical study is to learn how different temperature and humidity conditions affect breathing, lung function, exercise capacity, symptoms, and other physical responses in children and youth aged 11 to 18 years with asthma, compared with age- and sex-matched children and youth without asthma. The main questions it aims to answer are: * How do different temperature and humidity conditions affect lung function, breathing symptoms, exercise capacity, and physiological responses in children and youth with asthma? * Do children and youth with asthma respond differently to these environmental conditions than children and youth without asthma? * Do sex and gender influence these responses? Researchers will compare children and youth with asthma to age- and sex-matched children and youth without asthma to see if temperature and humidity exposures have different effects on breathing, exercise performance, symptoms, and physiological responses. Participants will: * Attend two study visits in a climate-controlled chamber. * Be exposed to hot, cold, and varying humidity conditions for short periods of time. * Complete breathing tests and exercise testing before, during, and after each exposure. * Have symptoms, physical activity, and physiological responses monitored throughout the study.

Official title: Testing the Effects of Temperature & Humidity on Children With and Without Asthmas in an Environmental Climatic Chamber

Key Details

Gender

All

Age Range

11 Years - 18 Years

Study Type

INTERVENTIONAL

Enrollment

60

Start Date

2026-09

Completion Date

2027-09

Last Updated

2026-10-07

Healthy Volunteers

Yes

Conditions

Interventions

OTHER

Controlled Temperature and Humidity Exposure

Exposure to five controlled environmental conditions in a climatic chamber: ideal (18°C, 50-60% RH), cold dry (-15°C, 30-40% RH), cold humid (-15°C, 95-100% RH), hot dry (+35°C, 30-40% RH), and hot humid (+35°C, 95-100% RH). Participants undergo lung function testing, exercise testing, symptom assessments, and physiological monitoring during and after exposures.

Locations (1)

Ontario Tech University

Oshawa, Ontario, Canada