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In-Suit Light Exercise (ISLE) Prebreathe Protocol Peer Review AssessmentThe performance of extravehicular activity (EVA) by National Aeronautics and Space Administration astronauts involves the risk of decompression sickness. This risk has been mitigated by the use of oxygen "prebreathe" to effectively wash out tissue nitrogen prior to each EVA. Now that the Space Shuttle Program (SSP) is being retired, high-pressure oxygen will become a limited resource. The In-Suit Light Exercise (ISLE) Prebreathe Protocol offers several potential benefits including its potential to save 6 pounds of oxygen per EVA. At the request of the NASA Engineering and Safety Center, the peer review convened on October 14, 2010. The major recommendation of the Review Committee was that the ISLE protocol was acceptable for operational use as a prebreathe option prior to EVA. The results from the peer review are contained in this document.
Document ID
Document Type
Technical Memorandum (TM)
Brady, Timothy K.
(NASA Langley Research Center Hampton, VA, United States)
Polk, James D.
(NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 25, 2013
Publication Date
February 1, 2011
Subject Category
Space Transportation And Safety
Report/Patent Number
NASA/TM-2011-217062/Volume 1
Funding Number(s)
WBS: WBS 869021.
Distribution Limits
Public Use Permitted.
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