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Osteoarthritis
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Objective physical activity measurement in the osteoarthritis initiative: Are guidelines being met?†
Article first published online: 28 OCT 2011
DOI: 10.1002/art.30562
Copyright © 2011 by the American College of Rheumatology
Additional Information
How to Cite
Dunlop, D. D., Song, J., Semanik, P. A., Chang, R. W., Sharma, L., Bathon, J. M., Eaton, C. B., Hochberg, M. C., Jackson, R. D., Kwoh, C. K., Mysiw, W. J., Nevitt, M. C. and Hootman, J. M. (2011), Objective physical activity measurement in the osteoarthritis initiative: Are guidelines being met?. Arthritis & Rheumatism, 63: 3372–3382. doi: 10.1002/art.30562
- †
The findings and conclusions reported herein are those of the authors and do not necessarily represent the official position of the Centers for Disease Control and Prevention or the Osteoarthritis Initiative (OAI).
- ‡
Dr. Eaton has received grant funding from Pfizer.
Publication History
- Issue published online: 28 OCT 2011
- Article first published online: 28 OCT 2011
- Accepted manuscript online: 26 JUL 2011 12:00PM EST
- Manuscript Accepted: 19 JUL 2011
- Manuscript Received: 18 APR 2011
Funded by
- National Institute of Arthritis and Musculoskeletal and Skin Diseases. Grant Numbers: P60-AR-48098, R01-AR-055287, R01-AR-054155, R21-AR-059412
- Falk Medical Research Trust
- NIH, a branch of the Department of Health and Human Services. Grant Numbers: N01-AR-2-2258, N01-AR-2-2259, N01-AR-2-2260, N01-AR-2-2261, N01-AR-2-2262
- OAI Study Investigators
- Merck Research Laboratories
- Novartis Pharmaceuticals Corporation
- GlaxoSmithKline
- Pfizer, Inc.
- Foundation for the NIH
- Abstract
- Article
- References
- Cited By
Abstract
Objective
Osteoarthritis (OA) clinical practice guidelines identify a substantial therapeutic role for physical activity, but objective information about the physical activity of this population is lacking. The aim of this study was to objectively measure levels of physical activity in adults with knee OA and report the prevalence of meeting public health physical activity guidelines.
Methods
Cross-sectional accelerometry data from 1,111 adults with radiographic knee OA (49–84 years old) participating in the Osteoarthritis Initiative accelerometry monitoring ancillary study were assessed for meeting the aerobic component of the 2008 Physical Activity Guidelines for Americans (≥150 minutes/week moderate-to-vigorous–intensity activity lasting ≥10 minutes). Quantile regression was used to test median sex differences in physical activity levels.
Results
Aerobic physical activity guidelines were met by 12.9% of men and 7.7% of women with knee OA. A substantial proportion of men and women (40.1% and 56.5%, respectively) were inactive, having done no moderate-to-vigorous activity that lasted 10 minutes or more during the 7 days. Although men engaged in significantly more moderate-to-vigorous activity (average daily minutes 20.7 versus 12.3), they also spent more time in no or very-low-intensity activity than women (average daily minutes 608.2 versus 585.8).
Conclusion
Despite substantial health benefits from physical activity, adults with knee OA were particularly inactive based on objective accelerometry monitoring. The proportions of men and women who met public health physical activity guidelines were substantially less than those previously reported based on self-reported activity in arthritis populations. These findings support intensified public health efforts to increase physical activity levels among people with knee OA.