iStock 587220178Types of tremor

There are many different types of tremor that affect people in different ways.

Rest tremor:

  • Tremor which occurs when the muscles are not being voluntarily moved.
  • Normally when the limb is moved, the tremor will weaken or disappear.
  • Like all tremors, it will get worse when stressed or anxious.
  • Rest tremor is quite separate from other tremors. It is most commonly found in Parkinson's disease.

Action tremor:

  • Occur when moving muscles. 

Postural tremor:

  • Found when while maintaining a position such as out stretching your arm.

Kinetic tremor:

  • Occurs when moving a body part.

Intention tremor:

  • Complex kinetic tremor is normally referred to as "intention tremor".
  • Tremor becomes worsens when the limb moves towards a particular body part.

Task specific kinetic tremor:

  • These are tremors which appear only, or worsens with specific tasks or activities.
  • They are sometimes called "occupational tremors" and the best example of this is "primary writing tremor".
  • This is a condition in which tremor is largely or only seen when writing.

Idopathic dystonic tremor

  • Tremor that develops spontaneously or due to an unknown cause, “idiopathic”
  • It occurs in conjunction with dystonia.
  • Dystonic tremor can affect multiple body parts. Most commonly affected are the hands, head and occasionally voice.
  • Dystonic hand tremor is also described as “Writer’s cramp”.