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RECRUITING
NCT05761756
NA

Oxygen Toxicity: Mechanisms in Humans

Sponsor: Duke University

View on ClinicalTrials.gov

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

Interventions

BEHAVIORAL

Sleep Deprivation

24 hours sleep deprivation

DRUG

Caffeine

Oral administration of caffeine

DRUG

Methylphenidate

Oral administration of methylphenidate

DRUG

Carbon Dioxide

Oral administration of sodium bicarbonate to simulate carbon dioxide exposure

Locations (1)

Duke University Health Sustem

Durham, North Carolina, United States