Association between fear of movement-related pain and pain intensity generated after shoulder muscles test performed on subjects with subacromial impingement syndrome

• Grant number: 22/09726-3
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Effective date (Start): November 01, 2022
• Effective date (End): October 31, 2023
• Field of knowledge: Health Sciences - Physiotherapy and Occupational Therapy
• Principal Investigator: Anamaria Siriani de Oliveira
• Grantee: Moisés Lopes Xavier
• Host Institution: Faculdade de Medicina de Ribeirão Preto (FMRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil

Abstract

Subacromial pain syndrome (SDSA) is the most frequent diagnosis amongshoulder pathologies. Currently, there are few studies that seek to know the relationshipbetween fear of movement-related pain and pain present after physical exertion.Understanding this relationship is important to understand the impact of fear of painrelated to movement in the rehabilitation with exercises in patients with chronic pain in theshoulder. Objective: To investigate the association of fear of pain related to movement, age,sex and pre-test pain intensity on pain intensity generated after a stress testshoulder. Material and methods: 50 individuals with SDSA will participate in this study, fromboth sexes and aged over 18 years, recruited from a public physiotherapy servicesecondary level and a private clinic. Information will be collected fromsample characterization such as sex, age and duration of symptoms and pain andshoulder disability by the Shoulder Pain and Disability Index (SPADI), the fear of painrelated to movement by the TAMPA Scale of Kinesiphobia (TSK), central sensitizationby the Central Sensitization Inventory (CSI) and pain intensity by the Visual Analog Scaleof pain of 10 cm (VAS 10 cm) in the pre-stress test. EVA will also becollected at the time post-stress test. Individuals will be exposed to an assessmentmaximal isometric strength of shoulder muscles using portable dynamometer (HHD)stabilized by rigid Velcro belt. The glenohumeral muscles will be evaluated in theflexion, abduction, extension and medial and lateral rotation movements. the musclesscapulothoracic will be evaluated by the scapular movements of elevation, protraction in thesitting position and supine position, retraction and retraction with scapular depression.Statistics: Means and standard deviation of the characterization variables will be presentedsample and questionnaires. Confirmatory factor analysis will be performed to finda single score that includes all muscle strength data in order to be inserted into themultiple linear regression model that will be established through a conceptual model.Hypothesis: It is expected that when fear of movement-related pain is present, it isAn increase in pain after exertion has been reported in subjects with SDSA.