Microwave diathermy and transcutaneous electrical nerve stimulation effects in primary dysmenorrhea: clinical trial protocol

Abstract

The aim of this study will be to analyze the effects of microwave diathermy (MWD) and transcutaneous electrical nerve stimulation (TENS) on primary dysmenorrhea. Eighty eight women, age range 18-44 years, with no previous pregnancy, no practice physical activities, a BMI of ≤29.9 kg/m2, a regular menstrual cycle and a diagnosis of primary dysmenorrhea, with menstrual pain ranging from mild to severe, will be selected. The participants will be randomized into four groups: MWD and TENS, MWD and placebo TENS, placebo MWD and TENS, and placebo MWD and placebo TENS. Pain will be measured using the visual numeric scale and the McGill Pain Questionnaire; the pressure pain threshold using a digital algometer and conditioned pain modulation using the cold pressor test. Brazilian Clinical Trials Registry (RBR-5QKCK4. Registered on 16 March 2016).