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The Sock Test for Evaluating Activity Limitation in Patients With Musculoskeletal Pain

LI Strand, PT, is Assistant Professor, Division of Physiotherapy Science, Faculty of Medicine, University of Bergen, Ulriksdal 8c, 5009 Bergen, Norway (liv.strand{at}isf.uib.no). Address all correspondence to Ms Strand
SL Wie, PT, is Specialist in Occupational Health, Department of Occupational Health, Municipality of Bergen, Bergen, Norway

Background and Purpose. Assessment within rehabilitation often must reflect patients' perceived functional problems and provide information on whether these problems are caused by impairments of the musculoskeletal system. Such capabilities were examined in a new functional test, the Sock Test, simulating the activity of putting on a sock. Subjects and Methods. Intertester reliability was examined in 21 patients. Concurrent validity, responsiveness, and predictive validity were examined in a sample of 337 patients and in subgroups of this sample. Results. Intertester reliability was acceptable. Sock Test scores were related to concurrent reports of activity limitation in dressing activities. Scores also reflected questionnaire–derived reports of problems in a broad range of activities of daily living and pain and were responsive to change over time. Increases in age and body mass index increased the likelihood of Sock Test scores indicating activity limitation. Pretest scores were predictive of perceived difficulties in dressing activities after 1 year. Conclusion and Discussion. Sock Test scores reflect perceived activity limitations and restrictions of the musculoskeletal system.

Key Words: Activity limitation • Functional evaluation • Pain • Reliability • Validity

This article has been cited by other articles:

				L. I. Strand, R. Moe-Nilssen, and A. E. Ljunggren Back Performance Scale for the Assessment of Mobility-Related Activities in People With Back Pain Physical Therapy, December 1, 2002; 82(12): 1213 - 1223. [Abstract] [Full Text] [PDF]