Are you training for an upcoming Cooper River Bridge Run and can't run as long as you want? Is your foot and ankle hurting you after just a few miles? If this is the case then you may consider taking a look at your running style and posture. Please take a look at this blog post from CFS on a new running style called "Chi Running. Chi Running focuses on posture, leg swing, the position of the pelvis and a forward lean.
Danny Dreyer has developed this running technique and if you have time purchase his book callled:
" ChiRunning: A Revolutionary Approach to Effortless, Injury-Free Running.