react to the gels, bars and electrolytes you use when you are racing at a higher heart rate (race pace) than is usual when you're training. "Practise eating during training. Try to eat what and when you would during a race," recommends Taylor. It is also

to the run will give you a physical and mental boost on race day but shouldn't be the only brick session you do. It's vital to include a wider variety of combinations to keep you motivated and help you to reach your goals.Training toolsUsing a heart-rate

to protect your eyes from UV raysa watch to monitor your heart rate (some also have a GPS to record your distance)6 Have a nutrition planBecoming an endurance athlete requires a well thought-out nutrition plan. You'll be training for up to 18 hours a week, so

the wall. "You need more control over your speed than is the case with a single discipline," says Don. "By going too hard in one sport you can adversely affect another. Use your heart rate monitor and distance/speed meter to achieve the pace you've been

these points - the difficult one is swimming. In a race we cannot keep looking at our heart-rate monitor or stopwatch," says Bill Black, who coached the GB Men's Triathlon Team at the Sydney Olympics. "But if we train at a certain pace in the pool we can keep