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Leg movements on polysomnography that are too long to qualify as periodic limb movements of sleep (PLMS)

Leg movements on polysomnography that are too long to qualify as periodic limb movements of sleep (PLMS)
This figure shows a two-minute epoch of a PSG depicting leg movements lasting about 15 seconds, and therefore "too long" to be considered periodic leg movements of sleep (PLMS). The maximum duration of PLMS is 10 seconds.
PSG: polysomnography; PLMS: periodic limb movements of sleep; EOG: electrooculography; EEG: electroencephalography; EMG: electromyography; ECG: electrocardiography.
Illustrated by Seulah Rebecca Choi. Reproduced with permission.
Graphic 104841 Version 3.0