Cyclogram and cross correlation: A comparative study to quantify gait coordination in mental state

Deepak Joshi, Sneh Anand

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DOI: 10.4236/jbise.2010.33044                

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.

Keywords

Gait Coordination; Cyclogram; Crosscorrelation; Mental Task

Conflicts of Interest

The authors declare no conflicts of interest.

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