What type of tremor is typically observed in individuals with Parkinson's disease?

Individuals with Parkinson's disease typically exhibit a resting tremor, which is characterized by involuntary shaking that occurs when the muscles are relaxed and at rest. This type of tremor most commonly affects the hands, fingers, and limbs, and is often more pronounced when the affected individual is calm and not actively moving.

Resting tremors in Parkinson’s disease are a key clinical feature and can be a hallmark sign that aids in the diagnosis of the condition. The tremor usually diminishes or disappears during voluntary movements and can also be reduced when the person is sleeping. This phenomenon distinguishes resting tremors from other types such as postural tremors, which occur when maintaining a position against gravity, or kinetic tremors, which occur during movement. Intention tremors, on the other hand, are related to cerebellar dysfunction and occur as a person attempts to make a movement toward a target, which is not characteristic of Parkinson’s disease.