2.1.4. Randomization.
After completing a questionnaire and being evaluated by the researcher for inclusion and exclusion criteria, a person not involved in the study will randomly distribute the participants among the three experimental groups using an online random sequence generator program ((Group 1) Application of PBM twice a week for 4 weeks;(Group 2) Application of PBM three times a week for 4 weeks;(Group 3) Application of simulated PBM twice a week for 4 weeks;