Gait training or gait rehabilitation is the act of learning how to walk, either as a child, or, more frequently, after sustaining an injury or disability. Physical therapists, or physiotherapists, generally help their patients with gait training. Another device category, so-called end-effector gait trainers, activates the human gait pattern over moving foot-plates as opposed to an orthosis. The German society for Neurorehabilitation has recently recommended end-effector devices for gait rehabilitation after stroke due to current medical evidence.