Effects of Hypergravity and Anti-G-Suit Pressurization on Intrapulmonary GasMixing and Gas Trapping

摘要

The purpose of this study was to assess the effects of hypergravity and AGSpressurization on the resting lung volume, on the efficiency of intrapulmonary gas mixing and on gas trapping in the lungs, using an inert gas washout method. The authors report the results from tidal multiple-breadth washin/washouts of the inert marker gas SF(sub 6) in 12 seated health males exposed to +1 to +3Gz in a human centrifuge and who carried a full-coverage AGS pressurized to 0, 6 or 12 kPa.