Measuring the effects of hypercapnia on diver performance
- Conditions
- HypercapniaAnaesthesiology - Other anaesthesiologyNeurological - Studies of the normal brain and nervous system
- Registration Number
- ACTRN12623001275651
- Lead Sponsor
- niversity of Auckland
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- ot yet recruiting
- Sex
- All
- Target Recruitment
- 40
To be eligible, a prospective participant must meet all of the following:
• Age within the range of 18 to 55 years old
• Ability to read, write, and understand English
• Binocular acuity that is normal either corrected or uncorrected
• Possession of a valid scuba diving certification
• Medical fitness for diving according to Recreational Scuba Training Council recreational diver standards
• Provide written informed consent
A prospective participant will be ineligible to participate if any of the following are met:
• Current use of recreational drugs
• Current use of psychoactive medications including antihistamines
• History of mental illness
• Excessive use of alcohol (more than 21 standard alcoholic drinks per week)
• Consumption of over five glasses per day of caffeine-containing beverages (or its equivalent if taken as another form)
• Current smoker
• Previously participated in a hypercapnia study.
Study & Design
- Study Type
- Interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method umber of participants who self-rescue as assessed by direct observation of a successful bailout.[Direct observation 5 weeks after initial intervention (hypoxia exposure for the intervention group, or receipt of information leaflet by the control group).]
- Secondary Outcome Measures
Name Time Method Time to self-rescue after initiation of hypercapnic gas breathing[Electronic timer 5 weeks after initial intervention (hypoxia exposure for the intervention group, or receipt of information leaflet by the control group).]