[Purpose] The purpose of this study was to determine the effects of manual therapy on shoulder pain in office workers. [Subjects and Methods] Subjects included 38 office workers who were randomly divided into two groups: a manual therapy group of 19 subjects and a shoulder stabilization exercise group of 19 subjects. All subjects underwent evaluation of the pressure pain threshold in the splenius capitis and upper, middle, and lower trapezius muscles on both sides. The manual therapy used in the study was designed to include soft-tissue mobilization, prone thoracic mobilization, prone selected thoracic mobilization, cervical mobilization, and thoracic manipulation. Both groups underwent training of two 40-minute sessions per week for 6 weeks. [Results] After the intervention, both groups showed significantly increased pressure pain thresholds in the splenius capitis and upper, middle, and lower trapezius muscles on both sides. The manual therapy group showed greater improvements than did the shoulder stabilization exercise group in the splenius capitis on both sides, left upper trapezius, middle trapezius on both sides, and right lower trapezius. [Conclusion] The results of this study suggest that manual therapy for shoulder pain is feasible and suitable for office workers and may be useful in clinical rehabilitation.
Keywords: Manual therapy; Office worker; Shoulder pain.