“…The parameters of stimulation used in this study have already been used in previous studies and are considered ideal for the treatment of this type of pain, which is characterized as acute. 18,19,25,26 In this study, the women in EG were instructed to increase the amplitude of the device whenever the perception of stimulation weakened, so that they experienced a strong and tolerable tingling sensation. For Bjordal et al, 26 an effective amplitude for pain relief with TENS must be greater than 15 mA.…”