Hi,
In gliding, you stand with the ball of your foot on frisbee-like plastic discs. The bulk of the work is on the legs, however the DVDs target other areas as well. I brought mine at Wal-Mart for $30. The DVDs were made by Mindy Mylrea. I am enjoying gliding especially since I can't step until my knee stops hurting. There is a website for gliding whinc can provide much more info that I can. www.GlidingDiscs.com