Thoracic Manual Therapy With or Without Exercise Improves Pain and Disability in Subacromial Pain Syndrome: A Systematic Review of Randomized Trials

Objectives: The aim of this systematic review was to evaluate the effectiveness of thoracic manual therapy with or without exercise for improving clinical outcomes (pain, disability, range of motion (ROM), quality of life (QoL) and satisfaction) in patients with subacromial pain syndrome (SPS). Methods: A systematic review was conducted following PRISMA guidelines. Randomized controlled trials (RCTs) involving thoracic manual therapy with or without thoracic exercise for patients with SPS were included. Databases searched included PubMed, PEDro, Cochrane Library, and Web of Science up to April 2025. The methodological quality was evaluated with the PEDro scale. Results: Seven RCTs involving 393 patients were included. Interventions ranged from thoracic manipulation alone to combinations with exercises. Better outcomes were reported for every clinical outcome evaluated: pain, disability, ROM, QoL and satisfaction. However, methodological heterogeneity and variability in follow-up durations limited result generalizability. Conclusions: Thoracic manual therapy applied in isolation or with exercise was reported to have positive effects in reducing pain and disability in patients with SPS, especially in the short term. These findings support the inclusion of thoracic interventions as complementary strategies in shoulder rehabilitation programs. Future high-quality trials with long-term follow-up are needed to confirm and standardize these approaches.