• Trevor A Lentz, Zach Sutton, Scott Greenberg, and Mark D Bishop.
• Shands Rehabilitation, UF & Shands Orthopaedics and Sports Medicine Institute, Gainesville, FL 32611, USA. lentzt@shands.ufl.edu
• Arch Phys Med Rehabil. 2010 Apr 1;91(4):557-61.

ObjectiveTo determine the unique influence of pain-related fear of movement on foot and ankle disability, after accounting for pain, demographic, and physical impairment variables.DesignCross-sectional study using retrospective chart review.SettingOutpatient rehabilitation clinic.ParticipantsReferred sample of subjects with foot- and ankle-related disability (N=85, 40 men; mean age, 33y; range, 16-77y).InterventionsNot applicable.Main Outcome MeasuresLower Extremity Functional Scale (LEFS), Shortened Tampa Scale of Kinesiophobia (TSK-11).ResultsHierarchical regression analysis determined the proportions of explained variance in disability (LEFS). Demographic variables were entered into the model first, followed by pain intensity and range-of-motion (ROM) deficit, and finally, TSK-11. Demographics collectively contributed 9% (P=.015) of the variance in disability scores. Pain intensity and overall ROM deficit contributed an additional 11% (P<.001) of the variance, and TSK-11 scores contributed an additional 14% (P<.001). In the overall model, age (beta=-.29, P=.004), chronicity of symptoms (beta=.23, P=.024), ROM deficit (beta=-.28, P=.003), and TSK-11 (beta=-.41, P<.001) explained 34% of the variance in the LEFS score (P<.001).ConclusionsAge, chronicity of symptoms, ROM deficit, and TSK-11 scores all significantly contributed to baseline foot and ankle self-reported disability. Pain-related fear of movement was the strongest single contributor to disability in this group of patients.Copyright 2010 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.

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