periodic limb movement disorder
Findings
No curated finding names periodic limb movement disorder yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Excessive periodic leg movements during sleep that cause micro-arousals and interfere with the maintenance of sleep. This condition induces a state of relative sleep deprivation which manifests as excessive daytime hypersomnolence. The movements are characterized by repetitive contractions of the tibialis anterior muscle, extension of the toe, and intermittent flexion of the hip, knee and ankle. (Adams et al., Principles of Neurology, 6th ed, p387)
Definition from the Mondo Disease Ontology (MONDO:0005905), read 2026-09-29. CC BY 4.0.
Features
2 features
What the disease is reported to present with, and how often among people who have it — never how often a feature means the disease. HPO, hp/releases/2026-09-01.
- Limb myoclonusMondoHP:0045084
- Sleep myoclonusMondoHP:0012323
Where it sits
- A kind of