I have just spent 2.5 hours with the physio and he explained the bio-mechanics of the running gait amongst other things. Whilst the injury I have should sort itself out in a few weeks, the underlying causes may well be down to my gait being out of alignment thus forcing ligiments and tendons to work harder/differently to how they are designed to thus promoting injury. I am going back in a couple of weeks for some custom orthotics and linked with core stability excercises and stretching and a sensible training program I should stand a better chance of avoiding future injuries.