Pulmonary and Circulatory Effects of Acute Pulmonary Vascular Engorgement in Normal Subjects 1

subjects studied during submersion were females, in the same age group. The subjects were indoctrinated by several dummy runs before measurements were made to minimize the effects of anxiety. G Suit. The G suit3 was a single chamber, balloon type garment which covered the feet, legs, and lower abdomen. The suit could be inflated to the desired pressure within 5 seconds by a standard Air Force G-valve. Suit pressure of 2 PSI (103 mm. Hg) was customarily used. The subjects were studied in the seated position before, during and after a 2-minute period of suit inflation.