Gender Related Changes in the Complexity of Surface EMG in Biceps

It has been observed that there is a difference and loss of complexity in the human body between male and female. This is more prominent in the muscle strength and activity. Surface Electromyogram (sEMG) reflects the strength of muscle contraction. This gender related changes in sEMG have been associated with a reduction in the number of muscle fibers and a drop in the ratio of type II muscle fibers. In this study, we have modified our existing EMG model by populating lifelike parameters which is related to the changes in the muscle due to gender. In order to verify and identify the reasons for these changes, experiments were conducted on subjects male and female groups. Fractal dimension of sEMG, a measure of complexity was computed for both experimental and simulated sEMG signal. Results show that there was significant change in the fractal dimension of sEMG and this change was observed in both experimental and simulated sEMG.