Intention Tremor
Pronunciation: in-TEN-shun TREM-or
A tremor that occurs during purposeful movement and worsens as the limb approaches its target, indicating cerebellar dysfunction.
Full Definition
Intention tremor is a type of kinetic tremor that becomes more pronounced during voluntary, goal-directed movements, particularly as the moving limb approaches its intended target. Unlike resting tremor seen in Parkinson's disease, intention tremor is absent at rest and emerges during action. This neurological sign typically indicates cerebellar pathology or damage to cerebellar connections. In rehabilitation settings, intention tremor significantly impacts functional activities such as reaching, grasping, and fine motor tasks. Assessment involves observing tremor amplitude during finger-to-nose and heel-to-shin tests, with treatment focusing on weighted devices, stabilization techniques, and compensatory strategies.
Usage
Usage note: Always specify that tremor occurs 'during movement' to distinguish from resting tremor.
In Context
- "Marked intention tremor in the right upper extremity significantly impairs fine motor coordination and writing ability." — occupational therapy assessment
- "Intention tremor worsens with fatigue, requiring frequent rest breaks during therapy sessions." — rehabilitation progress note