1. Moving to Maintain Function in Knee Osteoarthritis: Evidence From the Osteoarthritis Initiative 
Dorothy D. Dunlop, PhD, Pamela Semanik, PhD, APN, Jing Song, MS, Leena Sharma, MD, Michael Nevitt, PhD, Rebecca Jackson, MD, Jerry Mysiw, MD, Rowland W. Chang, MD, MPH 
Archives of Physical Medicine and Rehabilitation 
Volume 91, Issue 5, Pages (May 2010)
DOI: /j.apmr
Copyright © 2010 American Congress of Rehabilitation Medicine Terms and Conditions

2. Fig 1
Good and poor functional performance outcomes from baseline to 1 year. *Good outcome: improved performance from Q1 to Q4 at baseline to higher quintile at 1-year evaluation or maintained performance in best Q5 quintile at both baseline and 1-year evaluation. †Walk rate quintiles based on all n=2664 baseline OAI participants with radiographic knee OA evaluated by timed 20-m walk test. ‡Chair stand quintiles based on all n=2667 baseline OAI participants with radiographic knee OA evaluated by chair stand test.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2010 American Congress of Rehabilitation Medicine Terms and Conditions

3. Fig 2
Baseline relationship between physical activity and function (n=2274).
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2010 American Congress of Rehabilitation Medicine Terms and Conditions