• Lilian Velasco, Irene López-Gómez, Lorena Gutiérrez, Carmen Écija, Patricia Catalá, and Cecilia Peñacoba.
• Department of Psychology, Rey Juan Carlos University, Alcorcón, Madrid, Spain.
• Clin J Pain. 2021 Dec 17; 38 (3): 182188182-188.

ObjectivesAlong with the symptoms of pain and fatigue, pain catastrophizing and avoidance behaviors are highly prevalent and associated with functional impairment in fibromyalgia (FM) patients. Although pain and fatigue affect patients' quality of life, research has been exclusively focused on how pain affects physical activity and exercise. The aim of this study was to analyze the role of pain catastrophizing and preference for fatigue-avoidance goals in walking behavior and functional impairment in women with FM.Materials And MethodsIn this cross-sectional study the sample was composed of 76 participants aged 18 years and older (mean age=55.05, SD=7.70). The study evaluated pain catastrophizing, preference for fatigue-avoidance goals, functional impairment, and walking behavior along with sociodemographic variables and clinical data.ResultsPain catastrophizing was associated with preference for fatigue-avoidance goals and this preference was associated with greater functional impairment and less distance walked. Path analysis supported the mediating role of preference for fatigue-avoidance goals in the relationship between pain catastrophizing and walking behavior and between pain catastrophizing and functional impairment. Furthermore, pain catastrophizing predicted greater preference for fatigue-avoidance goals which predicted more problems in functioning and less distance walked.DiscussionThe present study may help clarify the connection between the factors that stop individuals with FM from implementing beneficial behaviors such as walking, and thus, allowing for the design of psychological interventions that seek to maintain physical functioning despite experiencing fatigue.Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.

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