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Periodic Limb Movement Disorder (PLMD) and Restless Legs Syndrome

15:47 EST 24th November 2017 | BioPortfolio

Periodic limb movement disorder (PLMD) (sleep myoclonus or nocturnal myoclonus). It is described as repetitive limb movements that occur during sleep and cause sleep disruption. The limb movements usually involve the lower extremities, consisting of extension of the big toe and flexion of the ankle, the knee, and the hip. In some patients, the limb movements can occur in the upper extremities as well.

The limb movements occur most frequently in light non-REM sleep. The repetitive movements are separated by fairly regular intervals of 5 to 90 seconds. There can be significant night-to-night variability to the frequency of limb movements.

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