Amby Burfoot is Executive Editor of Runner's World USA, and the 1968 Boston Marathon winner Imagine that there was an exercise programme that could guarantee to get you in shape with only three identical 30-minute exercise sessions per week. I
? When Einstein runners finish a session, they don't write essays or poems. They record their numbers. How far did I run today? What was the temperature and humidity? My pre- and post-run weight? My average and maximum heart rate? Mission impossible
, and that helps you train harder without injuries," he says, "but I don't know what else someone is going to do, maybe some breakthrough with heart-rate training or something like that." By 2054, Scott believes, the mile record could be no faster than 3:39.Roger
.”He started by devising a simple experiment with a small group of subjects who ran or bicycled for 40 minutes at 76 per cent of their maximum heart rate, and then had blood samples drawn immediately after exercising. Next the blood samples were flown to a
