Periodic Limb Movement Disorder
Wayne E Anderson, DO
Selim R Benbadis, MD
Mary L Windle, PharmD
Stephen Berman, MD, PhD
Periodic Limb Movement Disorder Overview
Periodic limb movement disorder (PLMD) is repetitive cramping or jerking of the legs during sleep. It is the only movement disorder that occurs only during sleep, and it is sometimes called periodic leg (or limb) movements during sleep. "Periodic" refers to the fact that the movements are repetitive and rhythmic, occurring about every 20-40 seconds. PLMD is also considered a sleep disorder, because the movements often disrupt sleep and lead to daytime sleepiness.
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Periodic Limb Movement Disorder - Diagnosis
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