CompletedNot Applicable

Decompression Tables for Diving at Altitude

United States103 participantsStarted 2018-02-13

Plain-language summary

The aims of this proposal are to test current USN procedures for adjusting decompression procedures during air diving at 8,000 and 10,000 ft altitude and to provide a decompression algorithm for no-stop dives to 100 feet of sea water (fsw) at 10,000 and 12,000 ft altitude using enriched O2 (PO2=1.3 ATM). Additionally, the experiments will determine whether a period of hyperbaric hyperoxia, such as would be experienced during a dive at altitude, reverses altitude acclimatization, resulting in a return of acute mountain sickness (AMS) symptoms.

Who can participate

Age range18 Years – 40 Years

SexALL

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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: \- Exclusion Criteria: * smoking, cardiorespiratory disease (including hypertension, airways obstruction), seizure disorder, pregnancy, history of middle ear or sinus disease or high altitude cerebral or pulmonary edema (HACE, HAPE), inability to perform middle ear autoinflation, anemia, sickle cell disease and sickle cell trait. Individuals with VO2peak \<35 mL.kg-1.min-1 (males) and \<30 mL.kg-1.min-1 (females)

What they're measuring

Decompression Sickness

Timeframe: 12 hours

Maximum Acute Mountain Sickness (AMS) Score Change

Timeframe: 48 hour, 72 hours

Trial details

NCT IDNCT03390335

SponsorDuke University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2021-10-29

View on ClinicalTrials.gov More Decompression Sickness trials