Motivational Factors Influencing Older Adults Diagnosed with Knee Osteoarthritis to Join and Maintain an Exercise Program

in Journal of Aging and Physical Activity
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In order to provide successful interventions to increase physical activity among inactive older adults, it is imperative to understand motivational factors influencing exercise. The authors present data from 191 (baseline) and 125 (12-month) community-dwelling men and women with mean ages of 68.71 (7.47) and 67.55 (7.55) years, respectively, from a strength-training trial. Approximately 53% had diagnosed knee osteoarthritis. Using a Likert scale, participants self-reported their degree of motivation from personal, social, and environmental factors. Using multivariate analyses, the authors evaluated demographic and clinical correlates of motivational factors to join and continue with exercise. The following results were reported: Knee osteoarthritis was positively related to motivation from an organized exercise opportunity and from efficacy/outcome expectations, and knee pain was positively related to motivation from social support and experience with the exercise task. Understanding these motivators might help in targeting recruitment efforts and interventions designed to increase physical activity in older adults with lower extremity arthritis.

Damush is with the Health Services and Research Development Dept., Richard L. Roude-bush VAMC; the Indiana University Center for Aging Research; and the Regenstrief Institute. Perkins is with the Dept. of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202. Mikesky is with the Dept. of Physical Education, Indiana University Purdue University, Indianapolis, IN 46202. Roberts and O’Dea are with the Nat’l. Institute for Fitness and Sport, 250 University Blvd., Indianapolis, IN 46202.