Back to Journals » Patient Related Outcome Measures » Volume 10

Measurement properties of the Fear-Avoidance Belief Questionnaire for physical activity in patients with shoulder impingement syndrome

Authors Trolle N, Christiansen DH

Received 22 October 2018

Accepted for publication 1 January 2019

Published 19 March 2019 Volume 2019:10 Pages 83—87


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Editor who approved publication: Professor Lynne Nemeth

Nûno Trolle,1 David H Christiansen1,2

1Danish Ramazzini Centre, Regional Hospital West Jutland, Department of Occupational Medicine, University Research Clinic, Herning, Denmark; 2Department of Clinical Medicine, Health, Aarhus University, Aarhus, Denmark

Background: The Fear-Avoidance Belief Questionnaire for physical activity (FABQ-PA) was originally developed for patients with low-back pain. Whether the FABQ-PA is suitable for use among patients with other musculoskeletal disorders has been sparsely evaluated.
Purpose: To evaluate test–retest reliability, measurement error, construct validity, and responsiveness of the FABQ-PA in patients with shoulder impingement syndrome (SIS).
Methods: This prospective cohort study included 45 patients with SIS. Data were collected with questionnaires at baseline, after 2–4 days, and at 3 months, which included the Danish versions of the FABQ-PA and the Oxford Shoulder Score (OSS). Test–retest reliability was assessed by intraclass correlation, and standard error of measurement was estimated and converted into the minimal detectable change (MDC). Construct validity was investigated by analyzing the correlation between the baseline scores of the FABQ-PA and the OSS. Responsiveness was investigated from longitudinal construct validity using a correlation analysis reflecting changes over time.
Results: Test–retest reliability showed an intraclass correlation of 0.80, and examination of the measurement error showed no systematic differences and a MDC of 7.95 (95% CI 6.57–10.07). Construct validity showed a correlation of –0.60 (95% CI –0.76 to –0.37) between the FABQ-PA and OSS at baseline. A weaker correlation between FABQ-PA- and OSS-change scores was observed (–0.43, 95% CI –0.67 to –0.12).
Conclusion: The Danish version of the FABQ-PA is suitable for assessing fear-avoidance beliefs in groups of patients with SIS, but its ability to evaluate individual patients and changes over time may be more limited.

Keywords: outcome measures, validity, reliability, measurement error, responsiveness

Creative Commons License This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.

Download Article [PDF]  View Full Text [HTML][Machine readable]