Method and device to manage freezing of gait in patients suffering from a movement disorder: Imagine walking down the hall, when suddenly your legs refuse to take another step. Up to 60 percent of people with Parkinson's disease regularly experience such freezing of gait (FOG) episodes, which can lead to falls and serious injuries. “Some patients describe the feeling as having their feet glued to the floor,” says Emil Jovanov, a professor of computer and electrical engineering at the University of Alabama in Huntsville. Current treatments are not always effective, so Jovanov and his colleagues are developing a device that alleviates FOG with sensory cues, which have been shown to improve symptoms.