• Felipe Araya-Quintanilla, Héctor Gutiérrez-Espinoza, María Jesús Muñoz-Yanez, David Rubio-Oyarzún, Iván Cavero-Redondo, Vicente Martínez-Vizcaino, and Celia Álvarez-Bueno.
• Rehabilitation and Health Research Center CIRES, Universidad de Las Americas, Santiago, Chile.
• Pain Med. 2020 Oct 1; 21 (10): 2496-2501.

ObjectiveTo determine the short-term effect of graded motor imagery (GMI) on the affective components of pain and range of motion in subjects with chronic shoulder pain syndrome.DesignOpen-label single-arm prospective study.SettingThe Physical Therapy Laboratory, Universidad de las Americas.SubjectsOne hundred seven patients with chronic shoulder pain syndrome.MethodsThe subjects received a six-week GMI program based on laterality training, imagined movements, and mirror therapy. We assessed pain intensity using a visual analog scale (VAS), fear of movement was assessed using the Tampa Scale of Kinesiophobia (TSK), and catastrophizing was assessed using the Pain Catastrophizing Scale (PCS). The patient's flexion active range of motion (AROM) was also recorded.ResultsAt the end of treatment, the VAS showed a decrease of 4.2 cm (P < 0.001, Cohen's d = 3.3), TSK showed a decrease of 17.0 points (P < 0.001, Cohen's d = 2.8), catastrophizing showed a decrease of 19.2 points (P < 0.001, Cohen's d = 3.2), and shoulder flexion AROM showed an increment of 30.3º (P < 0.000, Cohen's d = 1.6).ConclusionsWe conclude that a short-term GMI program improves the affective components of pain and shoulder flexion AROM in patients with chronic shoulder pain syndrome.© The Author(s) 2020. Published by Oxford University Press on behalf of the American Academy of Pain Medicine.All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

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