• HuijnenIvan P JIPJDepartment of Rehabilitation Medicine, Research School CAPHRI, Maastricht University, Maastricht, The Netherlands Adelante, Centre of Expertise in Rehabilitation and Audiology, Hoensbroek, The Netherlands Department of Clinical Psycholog, KindermansHanne P JHPJ, SeelenHenk A MHAM, Madelon L Peters, SmeetsRob J E MRJEM, Jan Serroyen, Jeffrey Roelofs, Marielle Goossens, and Jeanine A Verbunt.
• Department of Rehabilitation Medicine, Research School CAPHRI, Maastricht University, Maastricht, The Netherlands Adelante, Centre of Expertise in Rehabilitation and Audiology, Hoensbroek, The Netherlands Department of Clinical Psychological Science, Maastricht University, Maastricht, The Netherlands Department of Methodology and Statistics, Research School CAPHRI, Maastricht University, Maastricht, The Netherlands.
• Pain. 2011 Sep 1; 152 (9): 2165-2172.

AbstractIn chronic low back pain (CLBP) research, the self-discrepancy model has been applied to explain dysfunctional avoidance and persistence behaviour. The main aim of this study was to evaluate whether specific self-discrepancies in patients with CLBP are associated with the abovementioned types of activity-related behaviour and whether changes in self-discrepancies over time are associated with changes in activity-related behaviour. Furthermore, the aim was to evaluate whether avoidance and persistence behaviour are associated with a higher level of disability and a diminished quality of life and whether changes over time in avoidance and persistence behaviour result in changes in disability and quality of life. A longitudinal cohort study in a sample of patients with CLBP (N=116), in which self-discrepancies, disability, quality of life, and objectively registered characteristics of activity-related behaviour were measured, was performed to evaluate the pathways in the aforementioned self-discrepancy model. Results indicate that patients with CLBP who feel closer to their ideal-other show more characteristics of persistence behaviour. Patients who move further away from their ideal-own also show more characteristics of persistence behaviour. Furthermore, in patients characterized as avoider, a decrease in a patient's daily uptime was associated with a decrease of mental health-related quality of life.Copyright © 2011 International Association for the Study of Pain. Published by Elsevier B.V. All rights reserved.

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