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Determining a bends-preventing pressure for a space suitResearch conducted to determine the proper pressure for preventing bends during EVA without preoxygenation is examined. Male and female subjects with different breathing gas mixtures and pressures are studied in order to define the pressure. Visual and auditory Doppler ultrasonic signals are utilized to monitor intravascular gas bubbles. The workload, which simulates EVA, consists of a handturned bicycle ergometer, a torque wrench operation, and a rope pull. The experimental data reveal that the minimum space suit pressure needed to prevent decompression sickness is 9.5 psi.
Document ID
19900024036
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Krutz, R. W., Jr.
(Krug International San Antonio, TX, United States)
Webb, J. T.
(Krug International, Technology Services Div., San Antonio TX, United States)
Dixon, G. A.
(USAF, School of Aerospace Medicine, Brooks AFB TX, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Publication Information
Publication: SAFE Journal
Volume: 19
Subject Category
Man/System Technology And Life Support
Accession Number
90A11091
Funding Number(s)
CONTRACT_GRANT: NASA ORDER T-82170
Distribution Limits
Public
Copyright
Other

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