The Effectivenes of Non-invasive Neuromodulation in Adult Women With Primary Dysmenorrhea, Through the TENS Stimulation at Different Times of Mentrual Cycle in Each Group

The effectiveness of non-invasive neuromodulation in adult women with primary dysmenorrhea, through the TENS stimulation at different times in each group: during the bleeding phase (G1), between days 25-28 and 1-3 of menstrual cycle, and in the luteal phase (GI2), between days 17 to 24 of menstrual cycle. The control group (CG) will be treated just like GI1, during the bleeding phase, but without the TENS transmitting the current. Participants will be evaluated by the NPRS, MPQ, SF12, CVM-22, HADS, PCS, PSQI and UDP immediately after treatment in GI1 and GC, and at the beginning of the next bleeding phase, being 28 days after the intervention in the case of GI1 and GC, and 7 days after the intervention in the case of GI2, as well as 28 days after in this last.