Comparison of the Efficacy of Transcranial Direct Current Stimulation (tDCS) of the Primary Motor Cortex (M1) or the Prefrontal Cortex Combined With Aerobic Activity for Alleviation of Fibromyalgia Symptoms.

The goal of this study is to demonstrate the effectiveness of treating fibromyalgia using combination of electrical stimulation with aerobic activity. Participants will be randomly assigned to stimulation in a ratio of 1:1:1. 120 participants (40 in each group). The therapeutic course will include moderate aerobic physical activity (at 60% of the target heart rate adjusted for age) 3 times a week for 4 weeks (a week of adjustment, and 3 weeks of treatment), along with low current electrical stimulation for 3 weeks.