Improving physical activity and function in overweight and obese older adults with osteoarthritis of the knee: A feasibility study

Elizabeth A. Schlenk, Jennifer L. Lias, Susan M. Sereika, Jacqueline Dunbar-Jacob, Chian K Kwoh

Research output: Contribution to journalArticle

30 Scopus citations


Osteoarthritis of the knee, a prevalent condition in older adults, can impact physical function and ability to perform physical activity. This randomized controlled trial examined the effects of a 6-month self-efficacy-based, individually delivered, lower-extremity exercise and fitness walking intervention with 6-month follow-up on physical activity and function. The 26 subjects were mostly older (M = 63.2 years, SD = 9.8), White (83%), obese (BMI M = 33.3, SD = 6.0) women (96%). Physical activity was measured by diaries. Physical function was measured by the 6-minute walk, Short Physical Performance Battery (SPPB), and WOMAC Physical Function subscale. Exercise self-efficacy was assessed by a questionnaire. Results showed significant increases in self-reported performance of lower-extremity exercise and participation in fitness walking, distance in the 6-minute walk, and SPPB scores from baseline to 6-month follow-up with a trend for improvement in self-efficacy. Results suggest that the intervention was feasible, acceptable, and improved physical activity and function.

Original languageEnglish (US)
Pages (from-to)32-42
Number of pages11
JournalRehabilitation Nursing
Issue number1
Publication statusPublished - Jan 2011
Externally publishedYes



  • Aged
  • Exercise
  • Functional limitations
  • Osteoarthritis

ASJC Scopus subject areas

  • Nursing(all)
  • Rehabilitation
  • Physical Therapy, Sports Therapy and Rehabilitation

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