Tremors

Tremors are primarily categorized into two main groups based on the activation condition:

A specific type of kinetic tremor that worsens as a limb approaches a target (e.g., finger-to-nose testing). Essential Tremor - StatPearls - NCBI Bookshelf Tremors

When holding a limb motionless against gravity (e.g., holding arms outstretched). Tremors are primarily categorized into two main groups

A medical tremor is an involuntary, rhythmic, and oscillatory movement of a body part. It is the most common movement disorder encountered in clinical practice and is generally classified by when it occurs and which body parts are affected. Tremors

Occurs when a body part is relaxed and fully supported against gravity. This is most frequently associated with Parkinson’s disease .