1. Orthostatic Tremor: A Spectrum of Fast and Slow Frequencies or Distinct Entities?
- Author
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Heather B. Rigby, Matthew H. Rigby, and John N. Caviness
- Subjects
lcsh:Diseases of the musculoskeletal system ,Orthostatic tremor ,FOS: Clinical medicine ,Neurosciences ,Medicine ,Articles ,neurophysiology ,lcsh:RC925-935 ,Medical sciences ,lcsh:Neurology. Diseases of the nervous system ,lcsh:RC346-429 - Abstract
Background: Orthostatic tremor (OT) is defined by the presence of a high-frequency (13–18 Hz) tremor of the legs upon standing associated with a feeling of unsteadiness. However, some patients have discharge frequencies of 13 Hz; p = 0.002). The proportion of subjects who experienced gait unsteadiness (85.7% vs. 66.6% vs. 21.4%; p = 0.016), falls (37.5% vs. 50% vs. 0%; p = 0.010), and had abnormal gait on examination (71.4% vs. 66.0% vs. 14.3%; p = 0.017) was greater in those with low and intermediate frequencies. Discussion: Slow tremor electromyography frequencies (, Tremor and Other Hyperkinetic Movements, Tremor and Other Hyperkinetic Movements
- Published
- 2015