Learning how to manage injury – and the threat of injury – is an unavoidable side-effect of being a runner, but how can you tell whether the sudden onset of pain will pass in a couple of miles or is a sign of something more serious? Is the only

Sarah is a chartered physiotherapist who has specialised in treating track and field athletes for the past 20 years. She has worked for the British Athletics Team and was lead physio for the English Institute of Sport in London before setting up a

, patella tracking problems, tight overdeveloped calf muscles and Achilles tendon pain. It's changed the shape of my legs radically. It also enabled me to run up easy hills for the first time ever. Orthotics and a heel lift sorted out the residual shin pain