medicine groups, which have generally advised endurance athletes to drink 600ml to 1,200ml per hour. This is more or less where things stood before the NEJM publication last spring. A trio of triggersAfter the NEJM article appeared on 14 April, I waited a

of Sports Medicine, which calls for 590-1180ml per hour.For the first time in its 107-year history, the Boston Marathon this spring provided all 20,000 runners with a fold-out pamphlet from the American Running Association and the American Medical Athletic

compared to two other sports-specific recovery drinks," says Dr Emma Stevenson, Lecturer in Sport and Exercise Nutrition at Northumbria University.On three separate days, nine male cyclists did an energy-depleting exercise session, followed by four hours

15 to 20 minutes after your workout. Don’t dilly dally.Having won the post-training skirmish, John Ivy moved into the big war zone. In 2003, he published a performance study that argued for C+P while you exercise. He gave his subjects a three