Runners are divided into two camps: those who love numbers and those who don't. Members of the latter group prefer to focus on the Zen of running - they're always talking about the running "experience". This experience, they contend, is the essence of running – not mileage total...

of anyone in the competition (20:16) and winning the event overall.Aside from these running achievements, Armstrong has enjoyed unparalleled success in the Tour de France. Last summer he won it for the seventh time, before announcing his retirement. While I

of anyone in the competition (20:16) and winning the event overall.Aside from these running achievements, Armstrong has enjoyed unparalleled success in the Tour de France. Last summer he won it for the seventh time, before announcing his retirement. While I

should reduce injuries," says biomechanist Alan Hreljac, a retired researcher from California State University Sacramento.For the last decade, Davis has been researching runners' abilities to change their stride. Previously, experts believed that your

:44:50. At 55, he still manages to knock out a 3:10 marathon every autumn by practising what he preaches: running three workouts a week. While he has retired from triathlons, Murr, 42, with a doctorate in exercise physiology, still wants to complete another