View Full Version : FFT for GRF

Wichai Eungpinichpong
09-01-1994, 12:45 PM
Dear Biomech-L readers

I am new in this field. I wish to compare a pre/post treatment of the
irregularity of vertical ground reaction force curves of gait from a group
of patients with osteoarthritic knee, using frequency analysis (FFT) with
Expert Vision (EV). With "dft" function, I have got frequency spectrum for
each trial. Please any one tell me how to determine the raggedness
(irregularity) of the curves from the frequency spectrums using EV?

Your suggestion would be much appreciated. Thank you in advance.

Wichai Eungpinichpong
Postgraduate Physiotherapy
University of Otago
New Zealand

E-mail "wichai.eungpinichpong@stonebow.otago.ac.nz (Wichai Eungpinichpong)"

Wichai E
School of Physiotherapy
Otago Polytechcnic