Alpha and Gamma Motor Systems pp 596-598 | Cite as
On the Relation between Motor-Unit Discharge and Physiological Tremor
Abstract
Physiological tremor has two main spectral components. One is a consequence of mechanical resonance and its frequency changes with inertial loading (Stiles & Randall, 1967). The other is load independent (referred to as neurogenic) and contributes to two distinct frequency bands of the spectrum (Amjad, Conway, Farmer, O’Leary, Halliday & Rosenberg, 1994). Here we describe the relation between the neurogenic components of tremor and the discharges of single motor-units. While Elble & Randall (1976) studied extensor digitorum communis with a single load of between 200 – 250g or an equivalent voluntarily generated force, we have been concerned with loads not exceeding 25g, which is less than a 10% maximum voluntary contraction.
Keywords
Maximum Voluntary Contraction Spike Train Inertial Loading Physiological Tremor Tremor SignalPreview
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References
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