Easy Knee Strengthening Exercises for home or at work

This is from WebMD. I went through all the clear descriptive slides with pictures and they look like great exercises that you can do at home or at the office. I'm going to do them daily - thought it might be helpful for some folks:

http://www.webmd.com/osteoarthritis/joint-injections-13/slideshow-k...

Frances

That's definitely helpful, thanks :)