Walker F O, McCormick G M, Hunt V P
Department of Neurology, Wake Forest University Bowman Gray School of Medicine, Winston-Salem, North Carolina.
Muscle Nerve. 1990 Oct;13(10):918-22. doi: 10.1002/mus.880131006.
A patient is described with "orthostatic" tremor. Electromyography revealed tremor bursts of 15 Hz in the lower extremities while standing and with isometric activation of the muscles, but the bursts disappeared with isotonic activation of muscles. Similar tremor was recorded in the arms with isometric, but not isotonic activation. Review of previously reported cases confirms these findings. The clinical and electrophysiologic features of this tremor distinguish it from other recognized forms of tremor.
描述了一名患有“直立性”震颤的患者。肌电图显示，站立时以及肌肉等长收缩时下肢出现15赫兹的震颤爆发，但肌肉等张收缩时爆发消失。手臂在等长收缩而非等张收缩时也记录到类似震颤。对先前报道病例的回顾证实了这些发现。这种震颤的临床和电生理特征使其有别于其他已确认的震颤形式。
