I have been having back pain for a while too mainly located in the middle to lower back. Sometimes when i have raced or done a hilly run it gets worse and i get a shooting pain down my thigh. I have had 5 treatments with the osteopath and this has helped as my pelvis was out of line and my muscles were very tight. Although nothing is a quick fix he has said that i need to stretch much more so has suggested 10 minutes every day and before i run to get the muscles warm. I think it is all about the stretching!!!!!