ILGenWeb | USGenWeb | WorldGenWeb. My name is Mary Kathryn Kozy, and I'm the County Coordinator for Lawrence County. I want to thank Allison Mushrush, Celia Tomlin, and Laurel Treat for the work they have done on the site in past years. This site is part of the Illinois GenWeb Project which is a part of the USGenWeb Project.
Periodic Limb Movement Disorder. Periodic limb movement disorder involves a rhythmic jerking of the legs and sometimes arms, which may result in poor quality sleep and daytime fatigue. Unlike restless leg syndrome, these movements are involuntary and usually take place when a person is asleep.
Periodic Leg Movements during Sleep. Periodic Limb Movements during Sleep, Periodic Limb Movement Disorder. PLMS (Periodic Leg Movement during Sleep) also called Periodic Limb Movements during Sleep is characterized by involuntary movements of the legs while asleep. People who suffer from PLMS can be unaware of their limb movements, as they do not always wake from them.