Power spectrum analyses of electromyographic activity. Discriminators in the differential assessment of patients with chronic low-back pain.

@article{Biedermann1991PowerSA,
  title={Power spectrum analyses of electromyographic activity. Discriminators in the differential assessment of patients with chronic low-back pain.},
  author={Heinz-J. Biedermann and G L Shanks and William J. Forrest and Jennifer Inglis},
  journal={Spine},
  year={1991},
  volume={16 10},
  pages={
          1179-84
        }
}
Some parameters of the electromyographic power spectrum of the paraspinal muscles were recorded and analyzed with regard to their ability to discriminate between normal controls and patients with back pain classified as "avoiders" or "confronters" by their responses to the Pain Behavior Checklist. In terms of the activity of the multifidus muscle, the avoider group displayed spectral changes towards lower frequencies, reduced variability in the density spectrum, and higher values of estimated… CONTINUE READING
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