sleep-related myoclonus
sleep-related myoclonus
Nocturnal myoclonus Sleep disorders Muscle contractions in the form of 'jerks' or twitches, primarily of the flexors in the lower extremities, which have a characteristic frequency of 20-40 secs. See Restless legs.McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.