A muscular loosening and relaxation appliance, formed by at least one support shaft (1), at least one handle (2) and a plurality of rollers (3) linked to the support shaft (1), wherein the rollers (3) are linked to the support shaft (1) by means of a hole (5), through which the support shaft (1) runs, in such a way that the rollers (3) move independently from one another, relative to the support shaft (1), in a rotational and/or displacement movement.