Study design and setting: The design of the present study will be a randomized controlled trial with 2 follow-ups (one week and one month after intervention) that will be performed between May 2017 and June 2017 in one private clinic in Malaga, Spain. The outcomes will be assessed at baseline (t1), one week after intervention (t2), and one moth after intervention (t3). Written informed consent will be acquired for all participants prior to their participation. The study will be implemented and reported in line with the CONSORT statement.