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Investigating Pain-Related Avoidance Behavior using a Robotic Arm-Reaching Paradigm
Published on: October 3, 2020
[Validation of the German version of the Fear-Avoidance Beliefs Questionnaire (FABQ-D) for shoulder disorders]
Larissa Pagels1,2, Kerstin Lüdtke3, Axel Schäfer4
1Institut für Gesundheitswissenschaften, Universität zu Lübeck, Ratzeburger Allee 160, 23562, Lübeck, Deutschland. larissa.pagels@uni-luebeck.de.
Background:
With a prevalence of up to 30%, shoulder disorders form the third largest group of musculoskeletal complaints worldwide. Their formation and development are influenced by psychosocial factors such as movement-related fear. One of the internationally most common measurements for quantifying fear of movement is the Fear-Avoidance Beliefs Questionnaire (FABQ).
Objectives:
To investigate the reliability (internal consistency) and validity (structural validity, construct validity, predictive validity) of the FABQ‑D in a shoulder pain population.
Materials And Methods:
Subjects with shoulder pain were included in a multicenter cross-sectional study. In addition to fear-avoidance beliefs, pain intensity, subjective impairment in daily life and kinesiophobia were recorded. To this end, the FABQ‑D, numeric rating scale (NRS), Shoulder and Pain Disability Index (SPADI) and the Tampa Scale for Kinesiophobia (TSK-GV) were used.
Results:
A total of 49 subjects (24 women and 25 men) with a mean age of 41.8 years (SD = 12.8) were included. The descriptive evaluation at item level showed good internal consistency of the FABQ‑D (Cronbach's α = 0.88). The homogeneity factor differs significantly between the subscales (Loevinger's H = 0.66-0.9). The correlation analyses did not show any clear convergence of the FABQ‑D with the TSK-GV (r = 0.3501; p = 0.0137). A divergence to the constructs of the NRS (r = 0.1818; p = 0.2112) and SPADI (r = 0.4415; p = 0.0015) were confirmed. The hypothesis testing resulted in 42.87% of the assumed hypotheses and therefore a low construct validity. The FABQ‑D and the TSK-GV showed a significant influence on the duration of the complaints (R2 = 0.3652; p ≤ 0.0001). It was also shown that the greatest factors for a high FABQ‑D value were functional impairment (SPADI) and duration of symptoms (R2 = 0.3066; p = 0.0002). The subgroup analysis showed a significantly higher FABQ‑D value in older subjects (40-65 years; t = 3.8084/df = 47, p = 0.0002).
Conclusion:
The FABQ‑D is a reliable measurement tool. The construct validity should be further investigated in future studies. This study reproduced results from previous studies in other populations. The FABQ‑D appears to be an adequate measurement tool for quantifying fear of movement in patients with shoulder disorders.
