Initial agonist burst duration depends on movement amplitude

  title={Initial agonist burst duration depends on movement amplitude},
  author={Samuel H. Brown and Jennifer D. Cooke},
  journal={Experimental Brain Research},
The initial burst of EMG activity associated with arm movements made by normal human subjects was studied. Subjects made visually guided, steptracking movements of different amplitudes and speeds. The duration of the initial agonist burst was greater for large than for small amplitude movements. The burst duration was not continuously graded but was either short (70 ms) for small amplitude movements (less than 20 deg) or long (140 ms) for large amplitude ones (greater than 50 deg). Movements of… CONTINUE READING

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