Knee pain and wt. loss 2005

Journal of Arthritis and Rheumatism, July 2005
 
  
Losing just one pound can make a real difference in the way your knees feel. Scientists in North Carolina looked at 142 overweight and obese older adults who had osteoarthritis of the knees.
 
They found that for each pound of weight people lost, there was a four-pound reduction in pressure of the knees as they walked.  That means that shedding just one pound can lighten the load on the knees enough to slow the progression of osteoarthritis.