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Παρασκευή 19 Ιανουαρίου 2018

Could Activity Modifications Indicate Physical Decline Among Adults With Symptomatic Knee Osteoarthritis?

imageObjectives Mobility activity modifications indicate early functional losses that act as precursors to future declines among community-dwelling older adults. However, there is scarce evidence on whether activity modifications indicate poorer physical health among adults with symptomatic osteoarthritis, a major cause of disability. Our purpose was to investigate whether patient-reported mobility activity modifications indicated poorer physical health among adults with symptomatic knee osteoarthritis. Design Secondary cross-sectional analysis of randomized trial data was performed. Preclinical Disability Questionnaire was used to group participants into the following three categories: difficulty, modified, and no difficulty walking/stair climbing. Kruskal Wallis and χ2 tests were used to compare clinical factors across groups. Results Among 121 participants (median age = 60 yrs; 73% female; 60% white), less than 10% had modified walking/stair climbing. Compared with those with no walking difficulty, participants with modified walking had significantly less balance (P = 0.01) and global health (P = 0.01) as well as greater knee pain (P = 0.05) and physical disability (P = 0.04). Those with modified stair climbing had significantly smaller walking distances (P = 0.03) compared with those with no difficulty stair climbing. Conclusions Activity modifications may signal early impairments in physical health among people with symptomatic knee osteoarthritis. If confirmed, patient-reported activity modifications may enhance symptom evaluation in osteoarthritis and enable a better understanding of the disablement process.

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