What characterizes clonus?

Clonus is characterized by involuntary muscle contractions that occur in a repetitive pattern. This phenomenon is often a result of neurological conditions or disruptions in the nervous system's normal functioning. When a muscle or group of muscles is stretched, they may respond with a series of rapid, rhythmic contractions and relaxations, known as clonus. This is particularly noted in conditions affecting the central nervous system, such as multiple sclerosis or spinal cord injuries.

Involuntary muscle contractions are a key aspect of clonus, setting it apart from other conditions that might involve muscle strength or tone, such as muscle weakness or stiffness. Understanding this manifestation can help healthcare professionals assess neurological function and plan appropriate interventions.