Fig. 9

A pneumatic anti-G system developed for rats, consisted of a cylinder of compressed air, a G valve (Shimadzu Co. Ltd., Kyoto, Japan), and a rat anti-G suit (Fujikura, Parachute Co Ltd., Tokyo, Japan). The anti-G suit covered part of the rat abdomen and hind limbs, but not the tail. A G valve was placed on the table along the G axis and the level of the running weight of the G valve was positioned at a level of the rat head. The G valve runs automatically during Gz exposure and regulates the internal pressure of the anti-G suit [22]