Physical symptoms of HD can include involuntary movements (chorea) and the impairment of voluntary movements. The involuntary movements typically progress through the middle stages of HD but decline as rigidity increases in the later stages. Listed below are some of the symptoms;
- Involuntary jerking or writhing movements (chorea)
- Muscle problems, such as rigidity or muscle contracture (dystonia)
- Slow or abnormal eye movements
- Impaired gait, posture and balance
- Difficulty with the physical production of speech or swallowing
According to the Mayo Clinic, Impairments in voluntary movements — rather than the involuntary movements — may have a greater impact on a person’s ability to work, perform daily activities, communicate and remain independent. In addition to the above symptoms, weight loss is common in people with Huntington’s disease, especially as the disease progresses.