A system including a compressible element configured to compress a muscle in a limb of a user, a controller configured to control a sequence, rate or amount of compression of the compressible element, and a generator configured to move a working fluid to compress the compressible element as controlled by the controller. The sequence, rate or amount of compression of the compressible element is established to reduce an amount of effort expended by a heart of a user to move a volume of blood. Another system and a method are also disclosed.
