Olympic1.5K swim, 40K bike ride, 10K runIronman3.8K swim, 180K bike ride, 42K run (marathon)Between each leg is a stage known as transition, giving you time to prepare for the next discipline (for example, removing your wetsuit or parking your bike). Don

For one brief moment, probably while endorphins were still pumping through your body after a good run, you flirted with the idea of doing a marathon. Then the endorphins disappeared and the reality of training for four months and trying to squeeze

GETTY IMAGESFern Oliner had been a runner for more than 25 years when she experienced a breakthrough in her performance during a half-marathon."For the very first time, I felt like a true runner,' she recalls. "There I was, running uphill, passing

) .IronmanBrand name of global series of triathlon events comprising a 2.4-mile swim, 112-mile cycle, and 26.2-mile run (marathon).KKick boardA float you grip with your hands in the pool, while your legs do all the workLLactate ThresholdThe highest level

running, always ending with a walking segment to cool down."2. Use our run/walk scheduleHere's our 10-week run/walk schedule. Aim to run at a pace where you can easily hold a conversation - and do it three days a week, with rest days in between. Over

give up.The way to improve your lactate threshold is to train at your LT pace (see column three of the table, below). These LT paces are calculated at 85 per cent of your VO2max, or just a little bit faster than your marathon pace.Your weekly schedule