2.1. Study design
BLIND
The study is planned as a single-blind randomized controlled trial. Participants who meet the inclusion criteria were randomly assigned into 3 groups by the 1 block simple randomization method using Random Allocation Software by an expert statistician who is blinded. 31 women were assigned to the MRT group, 32 women to the PRE group, and 31 women to the control group. The evaluations will be performed by another physiotherapist who is blind to the group allocation. The evaluator has sufficient knowledge about all data collecting tools. All evaluations will be performed 1 week before the estimated start date of the menstrual cycle. The intervention will be applied for 2 menstrual cycle, 2 times a week, and each session will last about 20 to 30 minutes. Participants will inform that if they desire, another treatment method could be apply at the end of the study. Additionally, the session hours will be arranged to be compatible with their university class schedules, as they are university students. The assessments will be made at baseline, post-treatment and after follow-up period (Fig. Assessment schedule.