Shakiness
Shakiness
Shakiness (/ʃeɪkɪnɛs/), also known as tremor, is a medical term used to describe involuntary, rhythmic muscle contraction and relaxation involving oscillations or twitching movements of one or more body parts. It is the most common of all involuntary movements and can affect the hands, arms, eyes, face, head, vocal folds, trunk, and legs.
Etymology
The term "shakiness" is derived from the Old English word "sceacan," meaning "to shake," and the suffix "-ness," which denotes a state or condition.
Related Terms
- Tremor: An involuntary, somewhat rhythmic, muscle contraction and relaxation involving oscillations or twitching movements of one or more body parts.
- Parkinson's Disease: A long-term degenerative disorder of the nervous system that mainly affects the motor system. The symptoms generally come on slowly over time and often include shakiness.
- Essential Tremor: A nerve disorder characterized by uncontrollable shaking, or "tremors," in different parts and on different sides of the body. Areas affected often include the hands, arms, head, larynx (voice box), tongue, and chin.
- Muscle Twitch: A small, local, involuntary muscle contraction and relaxation which may be visible under the skin. Deeper areas can be detected by Electromyography testing, though they happen in healthy individuals as well.
See Also
External links
- Medical encyclopedia article on Shakiness
- Wikipedia's article - Shakiness
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