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Abstract Number: 2346

The Improving Motivation for Physical Activity in Arthritis Clinical Trial for Adults with Knee Osteoarthritis and Rheumatoid Arthritis

Abigail Gilbert1, Julia (Jungwha) Lee2, Pamela Semanik3, Jing Song4, Christine Pellegrini5, Daniel Pinto6, Dorothy D. Dunlop4, Rowland W. Chang7 and Linda S. Ehrlich-Jones8, 1Northwestern University Feinberg School of Medicine, Chicago, IL, 2Preventive Medicine/Biostatistics, Northwestern University Feinberg School of Medicine, Chicago, IL, 3College of Nursing, Rush University, Chicago, IL, 4Center for Healthcare Studies, Northwestern University Feinberg School of Medicine, Chicago, IL, 5Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, 6Department of Physical Therapy & Human Movement Sciences, Northwestern University, Chicago, IL, 7Institute for Public Health and Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, 8Research CROR, Rehabilitation Institute Chicago, Chicago, IL

Meeting: 2016 ACR/ARHP Annual Meeting

Date of first publication: September 28, 2016

Keywords: Motivational interviewing, Osteoarthritis, physical activity, quality of life and rheumatoid arthritis (RA)

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Session Information

Date: Tuesday, November 15, 2016

Title: Osteoarthritis – Clinical Aspects - Poster II

Session Type: ACR Poster Session C

Session Time: 9:00AM-11:00AM

Abstract:

Background/Purpose: Insufficiently active adults experience reduced quality of life. Because half of adults with arthritis are physically inactive, we evaluated the additional effect of a motivational-interviewing based lifestyle physical activity intervention when added to physician-advice-only control group on pain and physical function in adults with knee osteoarthritis or rheumatoid arthritis (RA).

Methods: Participants meeting American College of Rheumatology criteria for knee osteoarthritis or RA were randomized to physician-advise-only control or motivational-interviewing-based physical activity intervention group. For the motivational-interviewing intervention, participants met with a physical activity advocate who facilitated individualized physical activity goal setting and behavior change using motivational interviewing. Primary outcomes were pain and function evaluated by Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) for knee osteoarthritis and Health Assessment Questionnaire (HAQ) for RA at baseline, 3 months, and 6 months. Secondary outcome was accelerometer-measured moderate-to-vigorous physical activity (MVPA). Linear regression with generalized estimating equations (GEE) was used to evaluate the average intervention effect on changes in outcomes from baseline to 3 months and/or 6 months.

Results: Participants included 155 adults with knee osteoarthritis (76 intervention, 79 control) and 185 adults with RA (93 intervention, 92 control). The knee osteoarthritis participants who received the motivational-interviewing physical activity intervention had WOMAC pain score improve by 0.91 points (95% CI 0.05, 1.77), WOMAC function improve by 1.91 points (95% CI -0.66, 4.47), and their average daily physical activity increased by 22.79 minutes/day (95% CI -18.45, 64.04) more than control. For the RA intervention group, HAQ function score improved by 0.11 (95% CI -0.01, 0.22) compared to controls.

Conclusion: Motivational-interviewing-based physical activity intervention participants with knee osteoarthritis experienced significant improvement in pain compared to physician-advice-only controls. Both knee osteoarthritis and RA intervention participants demonstrated a trend towards improved physical function.  


Disclosure: A. Gilbert, NIH, 2; J. Lee, NIH, 2; P. Semanik, NIH, 2; J. Song, NIH, 2; C. Pellegrini, NIH, 2; D. Pinto, NIH, 2; D. D. Dunlop, NIH, 2; R. W. Chang, NIH, 2; L. S. Ehrlich-Jones, NIH, 2.

To cite this abstract in AMA style:

Gilbert A, Lee J, Semanik P, Song J, Pellegrini C, Pinto D, Dunlop DD, Chang RW, Ehrlich-Jones LS. The Improving Motivation for Physical Activity in Arthritis Clinical Trial for Adults with Knee Osteoarthritis and Rheumatoid Arthritis [abstract]. Arthritis Rheumatol. 2016; 68 (suppl 10). https://acrabstracts.org/abstract/the-improving-motivation-for-physical-activity-in-arthritis-clinical-trial-for-adults-with-knee-osteoarthritis-and-rheumatoid-arthritis/. Accessed .
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