EMG quantitative analysis of triceps muscle upon irradiation by different magnetic fields

ABSTRACT

An action potential analyzer was used to measure the EMG characteristics, generated by the triceps muscle. Three EMG parameters were investigated [i] the integrated voltage of the muscle's electrical activity in uV/sec, [ii] the frequency in spikes/sec, and [iii] the amplitude of the EMG. Triceps muscle in uV. The employed magnetic fields were [a] constant magnetic fields of intensities 500 Gauss and 10 KG, [b] pulsating magnetic field [MF] of intensity 50 G/50 Hz, the exposure time for all fields used was 15 min. The results of the present work showed that the constant MF of 500 G induced a little on muscle performance ability when it was applied for a short duration, and the increase of the EMG amplitude was 11.3 percent on the average. While the constant MF 10 KG increased the amplitude of the EMG by an average of 33.6 percent. Therefore, when the muscle is exposed to constant strong MF, its energy increases and this, in turn improves its performance ability. However, a pulsating MF of 50 G/50 Hz increased the muscle performance ability by an average of 37.0 percent