Medical

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.
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Sleep-related myoclonus in rheumatic pain modulation disorder (fibrositis syndrome) and in excessive daytime somnolence.
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