Evaluation of the Effect of Low-frequency Electromagnetic Fields on Muscle Recovery During the Training Process: a Pilot Study

The article is about study of low-frequency electromagnetic fields influence on muscle recovery during the training process. For this, an experimental blind placebo study was conducted with the involvement of 3 healthy volunteers. The test subjects conduct training protocols for 3 weeks. Electromyography and electrical impedance were used as the results of the study, signs were recorded with projections of the biceps muscle before training, after training and after exposure to an electromagnetic field. Subjects also recorded subjective pain sensations in both limbs throughout the study. The results obtained based on the analysis of the electrical impedance signal and electromyography did not reveal significant differences in the change in the parameters of the basic electrical impedance after training and after exposure to a low-frequency electromagnetic field. Based on the analysis of subjective pain and strength sensations of volunteers, a decrease in pain was obtained within 2 days after the first training session in the arm, which was subjected to low-frequency electromagnetic exposure, followed by equalization of sensations for both arms, as well as an increase in endurance by the end of training for the arm, by which had an impact at the end of the study.