<unk>  <unk>  is a sleep<unk>  where the patient moves<unk> s involuntarily and<unk> ally during sleep, and has symptoms or problems related to the<unk> .<unk>  should not be confused with restless legs syndrome (RLS). RLS is characterized by a voluntary response to an urge to move legs due to discomfort.<unk>  on the other hand is involuntary, and the patient is often unaware of these<unk> s altogether.<unk> <unk><unk> s (PLMS) occurring during daytime<unk> an be found but are considered as a symptom of RLS. Only PLMS during sleep can suggest a diagnosis of<unk> .<unk>  is characterized by recurrent episodes of frequent<unk><unk> s while sleeping. It mostly happens in the lower parts of the body like the toes, ankles, knees and hips. It can also, in some cases, appear in the upper extremities of the body. These<unk> s can lead the patient to wake up, and if so, sleep interruption can be the origin of excessive daytime sleepiness.<unk>  is characterized by increased<unk> <unk><unk> s during sleep (PLMS), which must coexist with a sleep disturbance or other functional impairment, in an explicit cause-effect relationship. Usually, these involuntary<unk> s come from lower extremities (including toes, ankles, knees, and hips), although they can also be observed in upper extremities, occasionally. PLMS seem to be common features within many people, and identifying whether or not these<unk> s are clinically relevant for a distinct diagnosis of<unk>  remains a challenge for clinical and scientific fields. Moreover, diagnosis of<unk>  cannot be used when narcolepsy, restless legs syndrome (RLS), REM sleep behaviour<unk>  (RBD) or untreated obstructive sleep apnea (OSA) is already diagnosed, since abnormal<unk> s during sleep are frequent in these<unk> s.
Periodic limb movement disorder
Periodic paralysis
Cramp fasciculation syndrome
Essential tremor
Holmes tremor
Torsion dystonia
Lonomia
Oromandibular dystonia