Excessive Periodic Sleep Related Leg Movements (abbreviated as EPLSM) refers to a sleep disorder characterized by involuntary and repetitive leg movements during sleep that can significantly disrupt a person's quality of sleep. Also known as periodic limb movements in sleep disorder (PLMS), it involves regular, rhythmic contractions of the leg muscles, causing sudden jerking or kicking movements, typically occurring in the lower limbs.
EPLSM is typically observed at night and can occur multiple times throughout the sleep cycle, leading to fragmented sleep and excessive daytime sleepiness. These leg movements are usually accompanied by brief arousals from sleep, although the individual might not be fully aware of these awakenings.
The cause of EPLSM is not fully understood, but it is believed to be related to abnormalities in the central nervous system, particularly the brain regions responsible for controlling movement during sleep. It can occur as an isolated disorder or may be associated with other sleep disorders, such as restless legs syndrome (RLS) or sleep apnea.
EPLSM can have a significant impact on a person's overall well-being, causing fatigue, daytime sleepiness, and difficulties in concentration and productivity. Treatment options for EPLSM may include medications that target the underlying neurological abnormalities or lifestyle changes such as adopting good sleep hygiene practices.
Overall, excessive periodic sleep-related leg movements refer to involuntary leg movements that occur during sleep and can disrupt normal sleep patterns, leading to various sleep-related and cognitive impairments.