Tremors

Question 1

Definition of tremor

Answer 1

Involuntary rhythmic movement of 1 or more body parts.

Simulated by alternating contractions of reciprocal muscles

Question 2

Resting tremor

• Features
• Example of disease

Answer 2

Disappears on movement, appears rest

Is exaggerated by contralateral movement.

Examples:

• Pill rolling tremor in Parkinson’s disease.
• Drug induced: Haloperidol, other antipsychotics (DA blocking)

Question 3

Postural tremor

Answer 3

Tremor that occurs during sustained muscle contraction but disappears at rest.

Present in outstretched limb or maintained postured against gravity

Example
- Benign essential tremor

Question 4

Action tremor

Answer 4

Tremor that is exaggerated by movement.

Includes: postural, kinetic, isometric and task-specific

Examples
- Intentional tremor