In a device for training the musculature of the human locomotor system, comprising a support unit which is at least indirectly attached at one end to a holding arm and at the other end can be releasably attached to a patient, wherein the holding arm is at least indirectly mounted, at its bottom end remote from the support unit, on a carrier chassis by means of at least one resilient element, training of walking or running movements implementing natural movement dynamics without risk of stumbling or falling is made possible in that a resilient element is coupled to at least one stabilizing assembly, which prevents torsion of the holding arm about its longitudinal axis and also restricts movement of the holding arm such that the end of the holding arm remote from the carrier chassis is capable of movement over a predetermined area and the support unit pivotally attached to the holding arm is thereby capable of movement within a predetermined volume.
