Aug 17, 2014 2:49 PM GMT
The Mio Alpha heart rate monitor is worn on the wrist and measures the flow of blood through the skin.
NYT: Heart rate monitors can be a useful tool during exercise for new and experienced runners and other athletes. You first need to identify the target heart rates at which you should train.
One way is to estimate your maximum heart rate using the formula “211 minus 64 percent of age.“. The American Heart Association recommends training at 50 percent to 85 percent of maximum, depending on your goals. That works out to a maximum heart rate of 180 beats a minute for a 48-year-old, and a training level from 90 to 153 beats a minute.
A more personalized way to find those targets with less arithmetic is to establish a personal baseline heart rate by measuring it while exercising at a sustained, steady pace during which you can still talk.
Over time, as you become more fit, you will notice that you can go for longer and faster at your baseline heart rate.