from injury you can maintain your resistance workouts with aqua jogging. "It removes the high impact associated with running but recruits and trains similar muscles," says Lane.2. Calculate your maximum heart rate accuratelyWomen's hearts

injury you can maintain your resistance workouts with aqua jogging. "It removes the high impact associated with running but recruits and trains similar muscles," says Lane.2. Calculate your maximum heart rate accuratelyWomen's hearts are smaller than men

will keep you going on a long run in the cold." - Steve Trew "The BlueSky Telemetry GPS is amazing. It tracks speed and heart rate and plots my position on Google maps. My coach can keep track of what I am doing and how hard I'm going without ever leaving

."Walking is underrated," he says. "It can be demanding: an 81kg person will burn around 100 calories per mile. If you find it hard to run below 65 per cent of your maximum heart rate, now is your chance to exercise at a lower heart rate, which will improve your fat

20-minute time trial on the turbo trainer and record the heart rate, speed and cadence you maintained.On the run, go to your usual run route or course and try to set a PB for intervals - such as 5 x 1000m - or sustained efforts - such as three miles

– 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 cross