anaerobic threshold12-18 MILESYour glycogen stores are now starting to run low, so your body is desperately trying to convert the more abundant and energy-rich fat stores to keep your motor running. "How efficient your body is at doing this is about 30 per
lap in the recent indoor 800m World Championships and completely blew up," he explains. Get into the habit of 'feeling' pace – try running at threshold or race pace without looking at your watch. "It comes through experience, but being able to switch
-long threshold session, a 10K hills session and a 45-minute recovery run, along with a full gym session cross-training and focusing on my core. Because I have relatively little time, Keith makes sure that each session is focused on achieving something
