JBiSE  Vol.3 No.3 , March 2010
Cyclogram and cross correlation: A comparative study to quantify gait coordination in mental state
ABSTRACT
The purpose of this study to evaluate the effect of mental task on gait coordination. The comparison between two techniques Crosscorrelation and Cyclo- gram has been performed. A set of gait experiments was developed and conducted to evaluate the effect of mental task on gait coordination. The perimeter derived from the geometric figure, cyclogram perimeter (CP), of the knee-knee cyclogram is the main descriptor considered in this study. For crosscorrelation it is the peak value of cross correlation coefficient (CCC) that has been taken for comparison. The sensitivity of both the techniques in terms of percentage has been calculated. Crosscorrelation is highly sensitive (mean=20.4 S.D.=2.3), towards the change in gait coordination with mental task, in comparison to cyclogram perimeter (mean=2.2 S.D.=1.2). The results have strength to assess the progress of rehabilitation among Parkinson patients.

Cite this paper
nullJoshi, D. and Anand, S. (2010) Cyclogram and cross correlation: A comparative study to quantify gait coordination in mental state. Journal of Biomedical Science and Engineering, 3, 322-326. doi: 10.4236/jbise.2010.33044.
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