'What about your knees!' - Sophie Raworth's new book debunks this age-old running concern with an orthopaedic surgeon

Sophie Raworth smiling at the camera after finishing a running race.

Those who want to pull on their running shoes and start after a certain age are often met with scepticism, in the form of an assumption and a question: running is bad for your knees - are you sure you don't want to do something else?

As well-meaning as it might be, it put a damper on even the most dedicated new runner's ambitions.