| Physiologic tremor | |
|---|---|
| Differential diagnosis | Hyperthyroidism |
Physiologic tremor is a tremor or trembling of a limb or other body part. The recorded frequency is in the range of 8-12Hz. It occurs in normal individuals, especially when they are stressed by anxiety or fatigue. It is therefore common in sports such as rock-climbing where it is known by names such as Elvis leg or sewing machine leg.[1] It may occur in an enhanced form as a pathological symptom of conditions such as hyperthyroidism or stimulants such as caffeine.[2]
References
- ↑ Peter Beal (2011), Bouldering: Movement, Tactics, and Problem Solving, ISBN 978-1594855016,
Elvis leg: Uncontrollable shaking in the lower leg caused by fear and fatigue. Best prevented by relaxing and dropping your heels when standing on footholds
- ↑ William W. Campbell (2012), "Abnormalities of Movement", DeJong's The Neurologic Examination, Lippincott Williams & Wilkins, p. 495, ISBN 978-1469817521
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