| Tremor is an unintentional (involuntary), rhythmical alternating
movement that can affect the muscles of any part of the body.
Tremor is caused by the rapid, alternating contraction and relaxation
of muscles, or groups of muscles, and is relatively common in multiple
sclerosis.
Uncontrollable tremor or shaking is a common symptom of disorders
that involve neurological tissue such as multiple sclerosis.
Tremor may also occur after stroke or head injury.
A tremor that gets worse during body movement is called an
"intention tremor". This type of tremor is a sign that the cerebellum
is involved; a region of the brain concerned chiefly with movement,
balance and coordination. |
