In sleep study terminology, what does "PLMS" stand for?

PLMS stands for Periodic Limb Movement Sleep, which refers to a sleep disorder characterized by repetitive movements of the limbs during sleep, particularly the legs. These movements can occur every 20 to 40 seconds and may lead to arousals or disruptions in sleep continuity. Understanding PLMS is essential for polysomnographic technicians, as it can impact sleep quality and is often assessed during sleep studies to determine its prevalence and possible relationship with other sleep disorders, such as insomnia or restless legs syndrome. The term captures both the timing (periodic) and nature (limb movement) of the occurrence, which is pivotal when conducting sleep assessments and interpreting polysomnographic data.