as a VO2max run. In most situations you shouldn’t train at VO2max pace during a week in which you race.Heart rate If you’re not using a measured course, you can use your heart rate to determine when you’re running at the correct pace. First, calculate
(upandrunning.co.uk).Forget about gadgets Heart-rate monitors, GPS watches, accelerometers that tell you how fast you're going - none of these glitzy products are really necessary for your first efforts. All you really need is a watch with a stopwatch function
