Study design, randomization, and blinding
This was a prospective single-blind randomized controlled trial comparing conventional rehabilitation (CG) with the combination of conventional rehabilitation and an SVR system (EG); all reporting of this trial is in accordance with the Consolidated Standards of Reporting Trials (CONSORT) statement [The study was approved by the Research and Medical Ethics Committee of the Integrated [healthcare] Area of Talavera de la Reina (protocol code: 12/2018), and it complies with the Declaration of Helsinki. All participants received verbal and written information about the study and gave their written informed consent.The participants were randomly assigned in a 1:1 ratio to the CG or the EG by a researcher who did not participate in the intervention or the evaluation process. The clinical practitioners who applied the conventional intervention and those who administered the baseline, postintervention, and follow-up clinical assessments to the intervention groups (CG and EG) were blinded. The participants and the researcher who applied VRBT could not be blinded.