Q My 10-year-old son has just been picked for his school running team and I have no idea how to help him train. He’s a very active, energetic boy and runs about a mile a week with the school. I realise that he’s too young to undertake a

and training.So what have I learnt – deep down – in 50 years as a runner?Enjoy your runningAs I was small and skinny, with no eye for a ball, running was the sport I enjoyed most. And competitive running is a challenge, a performance. You get nervous, you get

on the fringe of the national team until, by training 30 miles a day, he became European champion at 5000m and 10,000m.The natural-born sprinter has a high proportion of fast-twitch fibres and middle-distance runners probably have about equal amounts of fast