Biological effects of pulsating magnetic field on muscle performance ability in-vivo

ABSTRACT

The effect of magnetic field [MF] on different systems is due to 1 attraction or repulsion between the system and the applied field. This effect depends on the presence or absence of unpaired electron [s] in the system. Such systems have a permanent magnetic moment, and will be attracted appreciably toward an applied field because of their electron spin and magnetic susceptibility. If the system does not contain any unpaired electrons, the effect of applied MF is on the orbital motion of the paired electrons. The susceptibility in this case may be correlated with the radii of these orbits. A pulsating MF of intensity 50 Hz/50 G was used in the present work. A quantitative analysis has been done for EMG obtained from the triceps muscle of human. The basic characteristics of EMG which have been computed are; the integrated voltage, frequency, and the amplitude of the muscle's EMG. It was found that, pulsating MF increased the muscle performance ability, so that recruitment of other units, which happens normally in fatigue experiments, is less by 18.05 percent for 72.5 percent of the investigated cases. It is also concluded that, the pulsating MF of 50 Hz/50 G is of great effect on energizing the muscle during the fatigue process