Use the heart rate monitor (on most treadmills) to get yours a little higher than it would be for the same session outdoors, to take into account the impact the higher humidity levels but zero wind of running indoors. A 20-minute threshold run

't running long distances, you could still be at risk of overtraining. If you're super-busy at work, stressed or having relationship problems, it can impact upon your training and trigger UPS.What are the symptoms?Elevated resting heart rate Overtraining can

days. Expect to pay: £1-2.50 Read more: The RICE Method 7. A Heart Rate MonitorWhy? Runners are notoriously bad at judging the effort they're putting into a run. A heart rate monitor gives you an objective snapshot and helps you know whether you