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Estimation of human lower limb motions is elementary to enable power-assist robotic systems used for lower limb disabled persons. These robotic systems are based on lower limb muscles electromyographic (EMG) signals. EMG allows for the measurement of the change in the membrane as voltage from our muscles relates to work done. Apparently, there is no particular technique to estimate the mathematical...
Previous research studies have reported that spectral compression of the surface Electromyogram (SEMG) towards lower frequencies is associated with onset of localized muscle fatigue. One reason for this spectral compression has been attributed to motor unit synchronization in literature. According to this, motor units are pseudo randomly excited during muscle contraction, and the recruitment pattern...
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