1. Walking to Meet Physical Activity Guidelines in Knee Osteoarthritis: Is 10,000 Steps Enough? 
Daniel K. White, PT, ScD, MSc, Catrine Tudor-Locke, PhD, David T. Felson, MD, MPH, K. Doug Gross, PT, ScD, Jingbo Niu, MD, PhD, Michael Nevitt, PhD, Cora E. Lewis, MD, MSPH, James Torner, PhD, Tuhina Neogi, MD, PhD 
Archives of Physical Medicine and Rehabilitation 
Volume 94, Issue 4, Pages (April 2013)
DOI: /j.apmr
Copyright © 2013 American Congress of Rehabilitation Medicine Terms and Conditions

2. Fig 1
ROC curve of steps per day showing men (n=718) and women (n=1070) meeting the 2008 Physical Activity Guidelines for Americans.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2013 American Congress of Rehabilitation Medicine Terms and Conditions

3. Fig 2
Steps per day for high specificity values for meeting the 2008 Physical Activity Guidelines for Americans calculated from ROC curves for men (n=718) and women (n=1070).
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2013 American Congress of Rehabilitation Medicine Terms and Conditions