@dsonderhouse
Glide walking is done by ligning up your spine (by the way you stand): if your weight is centered over your heels, your shoulders are back, not hunched forward, and your head is erect and looking forward, not looking down, then that's a good start. Esther Gokhale explains the curve of your lower spine using this posture, and it's the important point. When posture is correctly aligned then lifting each foot to take a step forward feels weightless. This method takes a lot of stress off of the knee joints. It made all the difference to me. It also generated power to your stride, and strengthens leg muscles. Read Gokhale's book for the fine points. If you are interested, it's cheap on Amazon. She also has a website...just Google her name. Hope this is helpful.