There was one coach who wrote a book on sprinting, and he emphasised the importance of driving the arms forward. What do you think of that?

SUDHAHOTA: First of all, I think people write a lot of things, but they coach differently from what they write. Your running motion is supposed to be a natural thing. It s natural when your arms swing, so this is where the emphasis should be. They should swing from the shoulders. A lot of times you think you can run faster by pumping your arms. But speed is a matter of quickness of movement. With sprinting, in many cases the slower action is better because you re moving correctly.