First things first, I am not an instructor, just a 62 year old guy with lots of arthritis who NEEDS to find ways of making my activities enjoyable and less painful. The methods I use work great for me and maybe for you too but as with anything new, it takes some time. It took me 1.5 years to achieve my current walking Half Marathon PR of 2:11:12 and a couple of months longer for my 5K PR of 28:10.9. While no where near fantastic times, I think they are not too shabby for a walking geezer. I wish I had someone point me in the following direction to start with because I believe it would have made things a little easier and clearer for me. Try this experiment....having someone next to you is helpful just in-case you start to fall. Watch the videos because they really help explain the bio-mechanics. With 10 feet of clear floor in front of you, stand barefoot, no socks please, with your butt and head against a wall or door and the heels of your feet about one inch away. Slowly bend at hips keeping your back straight and butt touching. Feel the pressure build in your toes, shins and hamstrings? If you are flexible you can bend very far without falling and that is good. Now resume the starting position but this time bend at the ankles, again keeping back straight as you slowly move away from the wall. You will reach a point when you will have to take short rapid steps forward to keep from falling. This is the principle of Chi Walking that I use to walk fast. Allowing gravity to help pull you forward reduces the amount of energy expended by your muscles needed to walk. Also notice that when you take the short steps they most likely will be a mid-sole strike instead of a heel-plant strike. Heel strike is hard on all the joints and bones and can cause many types of injuries. The application of this method of walking can be very hard for some to incorporate but I found that after a short time my body was actually more relaxed and I was walking faster using less effort to do so. Although the following videos are about running, just watching will help to understand the techniques as they apply to running AND walking. http://www.youtube.com/watch?v=rYNZUioUdHQ&feature=related http://www.youtube.com/watch?v=sP_BWMrJ4pI&feature=related So, just wondering how was the experiment?