A rocker for releasing leg muscle cramps is described in the present application. The rocker is a device that mechanically rocks the legs of a user for their release from muscle cramps. While releasing the leg muscle cramps, the user is lies on his back； his legs are attached to the rocker, which is capable of rocking the legs in various rocking movement patterns. These movements can include movement components in any possible direction, combined with movement components such as horizontal vibration, which is practically parallel to the direction in which the user is lying, a horizontal vibration component which is perpendicular to the direction of the previous movement component, and a vertical movement component. The user can choose the frequency of vibration of these movement components, and the result is vibration with a complex spatial movement.
