what is parkinsons distonia
Dystonia and Parkinson's Disease (PD) are movement disorders that are closely related. First, both conditions can occur together in certain diseases. People living with PD may experience dystonia as an early symptom or as a motor complication of treatment. Tremors that are present only with movement of the limb are usually due to other conditions. 2  While it is present in many patients, approximately 25% of people living with PD never develop a tremor. 3  Rigidity: Rigidity or muscle stiffness may impair the full range of limb motion and interfere with normal activities.