4. From Chorea to Rigidity: The Varying Motor Symptoms of HD
As we delve deeper into the facets of HD, we find that its effects are not limited to the mind, but manifest physically too. While the early symptoms may be subtle, as the disease progresses, its impact on a person’s motor abilities becomes much more pronounced. Let’s explore the varying motor symptoms of HD, from chorea to rigidity.
The most common motor symptom associated with HD is chorea – jerky, random, and uncontrollable movements that seem to flow from one muscle to the next. The word chorea itself is derived from the Greek word for dance, and indeed, the movements can seem dance-like, although they are completely involuntary.
While chorea is a hallmark symptom of HD, it isn’t the only motor challenge that individuals with HD face. As the disease progresses, chorea often gives way to rigidity and bradykinesia (slowness of movement). Individuals may experience stiffness in their limbs and have difficulty with balance and coordination.
Muscle problems extend to the facial muscles as well. Individuals with HD may have trouble controlling facial movements, leading to a lack of facial expressions. They might have difficulty swallowing and may even choke on food or drink because of reduced control over throat muscles.
Speech becomes slurred, and the voice may become softer or even fade away entirely. These problems can make it difficult for a person with HD to communicate and can add to the isolation that often accompanies the disease.
The motor symptoms of HD are not just disruptive; they can be dangerous. The lack of coordination can lead to falls, and difficulty swallowing can cause serious complications like choking or aspiration pneumonia. Understanding and managing these symptoms is a crucial part of living with HD. (4)
