How important are a good pair of Sneakers when running?
Proper footwear is also vital to successful training. According to Phillips, the average person takes about 10,000 steps per day and that number is increased dramatically when training for a distance race. He said that running creates an impact of up to four times the body weight on the feet, which means proper running shoes are essential. Size, width, and categories need to be measured to get the right fit. When feet are measured, running and walking gait are also measured to decide the best type of shoe for training.
http://www.atlanticnewstelegraph.com/articles/2009/02/10/news/doc4991df174abb7169298564.txt