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Oxygen Toxicity: Mechanisms in Humans
Sponsor: Duke University
Summary
The goal of this clinical trial is to learn about the mechanisms of oxygen toxicity in scuba divers. The main questions it aims to answer are: * How does the training of respiratory muscles affect oxygen toxicity? * How do environmental factors, such as sleep deprivation, the ingestion of commonly utilized medications, and chronic exposure to carbon dioxide, impact the risk of oxygen toxicity? * How does immersion in water affect the development of oxygen toxicity? Participants will be asked to do the following: * Undergo a basic screening exam composed of health history, vital signs, and some respiratory function tests * Train their respiratory muscles at regular intervals * Exercise on a cycle ergometer both in dry conditions and underwater/under pressure in the context of medication, sleep deprivation, or carbon dioxide exposure Researchers will compare the performance of each subject before and after the possible interventions described above to see if there are changes in exercise performance, respiratory function, cerebral blood flow, and levels of gene expression.
Official title: Applied Physiology of Oxygen Toxicity: Mechanisms in Humans
Key Details
Gender
All
Age Range
18 Years - 45 Years
Study Type
INTERVENTIONAL
Enrollment
62
Start Date
2023-11-28
Completion Date
2026-08-31
Last Updated
2025-10-23
Healthy Volunteers
Yes
Conditions
Interventions
Sleep Deprivation
24 hours sleep deprivation
Caffeine
Oral administration of caffeine
Methylphenidate
Oral administration of methylphenidate
Carbon Dioxide
Oral administration of sodium bicarbonate to simulate carbon dioxide exposure
Locations (1)
Duke University Health Sustem
Durham, North Carolina, United States