View Full Version : EMG waveform shape comparisons

Chuck Layne
05-08-2000, 10:59 PM
This is somewhat of a follow-up to Rene Ferdinands's question on April 14th
regarding the assesment of waveform similarity. We are interested in
determining the similarity of the shape of surface EMG waveforms that were
collected on different days. Based on the responses to Rene and the
BIOMCH-L archives discussion at
http://isb.ri.ccf.org/biomch-l/archives/biomch-l-1997-01/00050.html there
certainly seems to be no consesus regarding an acceptable technique. We
are not interested in magnitude differences or time-lags between the two
waveforms. We previously have used the Pearson r correlation coefficient
but it has been suggested that applying this measure to EMG waveforms
violates some statistical assumptions required for the use of this
technique. Any suggestions would be greatly appreciate.


Charles S. Layne
Associate Professor
Department of Health and Human Performance
University of Houston
office 713.743.9868
fax 713.743.9860

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