from total time, lap time, HR or time of day.Contact: 0800 056 1640; www.nike.comReebok Precision Trainer £129.99Displays both HR in beats per minute and as a percentage of maximum HR.Press a single button while running and watch scans through maximum

are 30 years old and fit into the second category: 180 - 30 = 150, and 150 - 5 = 145. This is your maximum aerobic heart rate. Maffetone believes you should train at or below this level for at least three months before adding speedwork, threshold runs

with an HRM, in 4:05. One year later she'd improved to 3:47, now boasts a best of 3:31 and is aiming to run under 3:15 at the Abingdon Marathon in Oxfordshire this October. "I've graduated from base training and now know all the heart rates I need to train

or runners using heart rate training to lose weight. It's also ideal for people who are simply curious about training using heart rate.Contact 02392 257388; www.cardiosport.comSplash out on the…Polar S610IPrice £180What is it? One of the best top