Abstract
Coherences between coactivation of wrist antagonist muscles and movement fluctuation were assessed in four violinists with a task-specific tremor and four age-matched healthy violinists using electromyography and accelerometer. We found coherence between individual muscular activation and tremor only in patients at a frequency range of 3–8 Hz. The finding corroborates the notion that primary bowing tremor emerges mainly due to central neurogenic contributions via motor-unit synchronization. Furthermore, the coherence between the muscular coactivation and tremor suggests a relation of the tremor to dystonia.
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Lee, A., Tominaga, K., Furuya, S. et al. Coherence of coactivation and acceleration in task-specific primary bowing tremor. J Neural Transm 121, 739–742 (2014). https://doi.org/10.1007/s00702-014-1177-3
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DOI: https://doi.org/10.1007/s00702-014-1177-3