TITLE:
A Novel Approach to Unravel Gait Dynamics Using Symbolic Analysis
AUTHORS:
Chandrakar Kamath
KEYWORDS:
Gait Signal, Neurodegenerative Disorder, Nonlinear Dynamics, Ordinal Patterns, Symbolic Analysis
JOURNAL NAME:
Open Access Library Journal,
Vol.2 No.5,
May
15,
2015
ABSTRACT:
Hypothesizing that a mere binary partition in symbolic analysis may not
be sufficient to capture the dynamics in gait signals, we attempted to find how
far the symbolic analysis with six partitions helps to characterize the nonlinear
properties of gait signals and thereby discriminate between healthy control and
neurodegenerative disordered gait signals. Differences found in the symbolic
entropies of the healthy control and neurodegenerative disorder groups
facilitated classification between the groups with higher accuracy. The
differences found in the percentage of ordinal patterns provided a visual
compact presentation to recognize the hidden variability patterns in the
different gait signals.