Cerebral palsy (CP) is a group of permanent movement disorders that appear in early childhood.
The electromyography (EMG) signal analysis and the gait analysis are two most commonly used methods in
the clinic. In this paper, a cyclostationary model of the EMG signal is proposed. The model can combine the
aforementioned two methods. The EMG signal acquired during the gait cycles is assumed to be cyclostationary
due to the physiological characteristics of the EMG signal production. Then, the spectral correlation density
is used to analyze the cyclic frequency (corresponding to the gait cycles) and spectral frequency (the frequency
of EMG signal) in a waterfall representation of the two kinds of frequencies. The experiments show that the
asymptomatic (normal) subjects and symptomatic subjects (with CP) can be distinguished from the spectral
correlation density in a range of cyclic frequencies.
YU Liang (余亮), YAN Li (严莉), CHEN Mengjie (陈梦婕), DONG Liangchao (董良超)
. Cyclostationary Modeling of Surface Electromyography Signal During Gait Cycles and Its Application for Cerebral Palsy Diagnosis[J]. Journal of Shanghai Jiaotong University(Science), 2018
, 23(Sup. 1)
: 56
-61
.
DOI: 10.1007/s12204-018-2023-9
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