Conclusions: Fluid displacement from the legs by LBPP increases neck circumference and Rph in healthy subjects.
下体正压引起的体液转移可增加健康受试者的颈周径和咽部阻力。
英语百科
Displacement (fluid)
In fluid mechanics, displacement occurs when an object is immersed in a fluid, pushing it out of the way and taking its place. The volume of the fluid displaced can then be measured, and from this the volume of the immersed object can be deduced (the volume of the immersed object will be exactly equal to the volume of the displaced fluid).