2.1. Study Design
A Randomized Controlled Trial (RCT) (NCT05347303) was conducted with pre-intervention and post-intervention measures, where participants were assigned to the FR group or the FR + OMT group following a simple randomization protocol, using the EPIDAT program in its version 4.2. This study took place between February and June 2022. All participants were informed of the risks and benefits of the research and signed an informed consent form before starting the study. The consent and all the research were approved by the Human Ethics Committee of the University of Jaén (MAR.22/6.TFM) in accordance with the Declaration of Helsinki on good practice, following all applicable laws and regulations. The intervention protocol based on myofascial release using OMT was performed by a physiotherapist specialized in OMT with more than 3 years of experience in the field, while the FR protocol was performed by a physiotherapist for both groups who was blinded to the allocation of the participants.