Abstract: A device for a human leg, includes a one-piece frame made of an at least partially deformable material, having a supporting portion arranged so as to at least partially surround a foot over the length thereof and a generally elongate actuating portion extending substantially perpendicular to the supporting portion and connected to the latter by an intermediate portion, the actuating part including a contact area shaped so as to conform to the human leg and having a defined length in order to be supported on a selected portion of the leg located between the bottom of the Achilles tendon and the bottom of the thigh, so as to provide a self-massaging effect during a walking movement of the human leg.