Single-joint rapid arm movements in normal subjects and in patients with motor disorders.

@article{Berardelli1996SinglejointRA,
  title={Single-joint rapid arm movements in normal subjects and in patients with motor disorders.},
  author={Alfredo Berardelli and Mark Hallett and John C. Rothwell and Rocco Agostino and Mario Manfredi and Philip Douglas Thompson and C. David Marsden},
  journal={Brain : a journal of neurology},
  year={1996},
  volume={119 ( Pt 2)},
  pages={661-74}
}
In normal subjects the execution of single rapid one-joint movements is characterized by an electromyographic (EMG) pattern composed of three discrete bursts of activity; two bursts (first and second agonist bursts, or AG1 and AG2) are present in the agonist muscle separated by an almost complete period of electrical silence. During this pause, another burst (antagonist burst, or ANT) occurs in the antagonist muscle. If a rapid movement is executed during tonic activation of the agonist muscle… CONTINUE READING
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