I had persistent sharp pain whenever I first walked in the morning and whenever I tried to exercise (run or jog). I am an avid runner and the pain eventually became debilitating that I could no longer perform at the level I was accustomed to. I feel great now and am experiencing no pain. I'm back to running 20 miles / week and plan to gradually increase distance and speed. Before having Extracorporeal Shock Wave Therapy, I did have a cortisone shot months earlier but only had minor/ temporary relief. With ESWT I experienced no pain after 1 week and have been pain free for 2 months so far.Jeff Grimm