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From Simple English Wikipedia, the free encyclopedia

Clonus is the name for involuntary rhythmic contractions of muscles or muscle groups. The term is from the Greek for "violent, confused motion". Cloni can happen as a sign of certain neurological conditions, such as epilepsy, stroke, and multiple sclerosis. They can also be a sign that the spinal cord was damaged. Cloni can also occur as a reaction to certain drugs.