|
Rubicon Research Repository >
Rubicon Foundation Archive >
Technical Reports and Workshops >
USAF Technical Reports (USAF-SAM and Brooks AFB) >
Please use this identifier to cite or link to this item:
http://archive.rubicon-foundation.org/7016
|
| Title: | Cardiorespiratory and Performance Responses to Sustained Pressure Breathing. |
| Authors: | Stolp, BW
Dear, GdeL
Lew, N
Berbett, K
Fritz, KP
Lanzinger, M
Moon, RE |
| Keywords: | Hypobaric Conditions
RESPONSE(BIOLOGY)
PRESSURE BREATHING
HYPOBARIC CHAMBERS
PSYCHOMOTOR FUNCTION
RESPIRATORY SYSTEM
oxygen
CARDIOVASCULAR SYSTEM
HEART
BLOOD ANALYSIS
ALTITUDE
PULMONARY ARTERIES
HYPERVENTILATION
HYPOTENSION
CARDIORESPIRATORY
DEPRESSURIZATION |
| Issue Date: | 1997 |
| Publisher: | ARMSTRONG LAB BROOKS AFB TX |
| Citation: | ADA387781 |
| Abstract: | Positive pressure breathing (PPB) is used to provide pilot life support during cockpit depressurization at altitudes at which the ambient pressure is insufficiently high to maintain adequate oxygen tension even when breathing 100% 02. Although pulmonary barotrauma and hypotension can usually be prevented by an external chest counterpressure jerking and a G-suit, involuntary hyperpnea, presumably caused by activation of an upper airway stretch receptor, can limit pilot performance, This phenomenon was investigated in 10 normal volunteers wearing the COMBAT EDGE, who were instrumented to obtain arterial blood samples while different forms of applying positive pressure breathing were applied. In order to study effects on cardiac output, four subjects were instrumented with pulmonary artery catheters while they breathed 34% O2_at a simulated altitude of 24,900 ft in a hypobaric chamber, in order to simulate 100% 02 breathing at 50,000 feet. Psychomotor performance was assessed using a subset of the Tri-Service Cognitive Battery implemented on a laptop computer. |
| Description: | Citation Status: Active; Citation Classification: Unclassified; Title Classification: Unclassified; Report Classification: Unclassified; Identifier Classification: Unclassified; Abstract Classification: Unclassified; Distribution Limitation(s): 01 - APPROVED FOR PUBLIC RELEASE; Information provided by the Department of Defense and the Defense Technical Information Center (http://www.dtic.mil/) is considered public information and may be distributed or copied unless otherwise specified. Use of appropriate byline/photo/image credits is requested. |
| Gov't Doc # : | ADA387781
AFRL-HE-BR-TR-2001-0010
FY7624-95-0-0327
TR-2001-0010 |
| URI: | http://archive.rubicon-foundation.org/7016 |
| Appears in Collections: | USAF Technical Reports (USAF-SAM and Brooks AFB)
|
Files in This Item:
| File |
Description |
Size | Format |
|---|
| ADA387781.pdf | | 3114Kb | Adobe PDF | View/Open |
|
All items in DSpace are protected by copyright, with all rights reserved.
|
