Efficacy of the myofascial approach as a manual therapy technique in patients with clinical anxiety: A randomized controlled clinical trial

BackgroundTo analyze the efficacy of the myofascial approach in patients with clinical anxiety and to study its relationship with associated symptoms.MethodsRandomized placebo-controlled clinical trial. Thirty-six adult patients with clinical anxiety were randomized to receive the myofascial treatment (n = 18) or placebo (n = 18). The patients and the evaluators were blinded to this assignation. The treatment consisted of four myofascial sessions of 40 min each for four weeks. The placebo intervention consisted of four sessions of simulated myofascial intervention of the same duration and frequency as the treatment. Follow-up was at one, three and six months. The primary outcome was clinical anxiety measured using the STAI (State-Trait Anxiety Inventory). Secondary outcomes were central sensitization, general health, somatization, depression, and pain.ResultsThere were significant differences in the behavior of the groups over time for clinical anxiety (STAI Trait-Anxiety) (p < 0.001), central sensitization (p = 0.005) and somatization (p = 0.008) in favor of the myofascial group, with a large effect size for anxiety and a medium effect size for central sensitization and somatization. Regarding clinical anxiety, after the intervention a mean difference was observed with respect to the baseline of 19.98 points in the myofascial group (p < 0.001) and 5.95 in the placebo group (p = 0.22). The intention-to-treat principle was used. There were no adverse events or side effects in either group.ConclusionsThe myofascial approach is effective in improving anxiety levels and associated central sensitization processes in patients with clinical anxiety and this improvement is maintained over time.Clinical Trial RegistrationNCT04826302.