A device for promoting proper walking-related muscle development is disclosed. In various embodiments, the device can be worn on the foot of a patient undergoing walking therapy. The device includes a toe section that can be secured to the foot, and provides a relatively slidable surface that allows relatively easy sliding of the toe section on the floor. Such a configuration facilitates easier execution of a step movement that promotes walking-related muscle development. The device can also include one or more attachments configured to allow a therapist to assist and/or guide the steps of the patient. In one embodiment, the attachment can be a loop attached to the toe section so that the therapist can insert his/her foot and guide/assist the patient's steps.