G Tolerance and Protection Associated with Anti-G Suit Concepts
Abstract
The effects of pressurizing various functional units of an experimental pneumatic-lever anti-G suit (PLS; frequently called a capstan suit) on +Gz tolerance and protection were determined at relaxed +GZ levels and during +6 Gz for 60 s -- termed high sustained G (HSG). +Gz tolerance and protection were measured on 9 male subjects using light loss criteria, increases in heart rate during HSG and subjective analysis. These data from the PLS were compared with similar findings obtained from the same persons wearing the USAF standard anti-G suits (CSU-/12P) with and without suit pressurization. Abdominal bladder inflation offered the highest increase in relaxed +Gz tolerance (0.7 G) whereas leg pressurization offered the greatest anti-G protection (heart rate criterion and subjective analysis) at HSG. Specifically regarding the PLS, it was found superior to the CSU-12/P at HSG regarding both +Gz protection and subject comfort.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1975
- Accession Number
- ADA006881
Entities
People
- R. R. Burton
- R. W. Krutz Jr.
Organizations
- United States Air Force School of Aerospace Medicine