A method of controlling a compression device controls avent phase of a compression device having an inflatable bladdercapable of being pressurized for applying compression to a partof a subject's body. The method includes delivering pressurizedfluid from a source of pressurized fluid to a first inflatablebladder disposed about a portion of the subject's body andventing the pressurized fluid from the first inflatable bladderby opening a first valve. The method further includesmonitoring fluid pressure in the first inflatable bladder duringthe venting of the first inflatable bladder. Based at least inpart on the monitored fluid pressure, the first valve isselectively closed and selectively reopened to control fluidpressure in the first inflatable bladder to remain within adesired residual pressure range.
