this past weekend i was fortunate enough to attend the healthy running forum put on by Dr Mark Cucuzella and Jay Dicharry. it was awesome. i learned quite a bit. i learned we have been giving ill informed info to each other. it''s a lot to go into as it was 16 hours of lecture and activities. to sum up. don't run until you take care of mobility and stability issues. then strength and finally run. good posture, proper diaphragmatic breathing with proper hip extension by pushing off with your glutes. it works pretty awesome. pretty much everything is in Dicharry's book "'Anatomy for Runners". if you can attend then do. if not find a good PT, chiro, or running coach who understands the principles to help you out.