Symptom 5. Tremors: A Shaky Encounter
Cerebellar tremors, another crucial symptom of cerebellar ataxia, are characterized by involuntary, rhythmic, oscillatory movements. Unlike the rest tremors commonly seen in conditions like Parkinson’s disease, cerebellar tremors typically occur during purposeful movements or while maintaining a posture.
The tremors associated with cerebellar ataxia are typically slow, with a broad amplitude, and tend to worsen when the individual attempts to move or engage in a specific task, such as reaching for an object. This is known as an ‘intention tremor,’ as it amplifies when a person intends to perform a particular action.
The precise cause of these tremors in cerebellar ataxia is not fully understood, but it is believed to stem from disruptions in the cerebellum’s control of muscle coordination. When the cerebellum’s ability to fine-tune and regulate movements becomes compromised, it can lead to oscillatory muscle contractions that manifest as tremors.
These tremors can pose significant challenges in daily life. They may affect a person’s ability to perform tasks requiring fine motor skills, such as eating, dressing, writing, or operating a computer. This can lead to frustration and reduced self-sufficiency, impacting a person’s overall quality of life. (5)
