Wednesday, May 29, 2013

How to Buy a Heart Rate Monitor

By Natalie van Dasshal


Most heart rate monitors come with a chest strap that wirelessly transmits to the wristwatch. (There are strapless monitors, but I don't think they are as accurate.) A heart rate monitor (HRM) is basically a high-tech gadget that does lots of technical stuff. So how do you pick the right one?

The most accurate heart rate monitors use a chest strap which fits snugly around your chest just below the breast. The transmitter detects the electrical activity of your heart just like an ECG. It relays this to a display, usually worn like a wristwatch, although some use earphones instead, or transmit to apps via Bluetooth. It is important for the strap to maintain contact or you get wild readings.

A new breed of devices began debuting in 2012 and 2013. Worn as a wristwatch or armband, they use optical sensors on the back of the device to continuously read your pulse through the skin. You get a real-time readout of your heart rate, just as with the chest strap monitors. Although make sure you do your homework as sometimes the readouts, especially on the cheaper Timex models, don't always work to plan.

A "basic" heart rate monitors indicate your "continuous heart rate", allow you to program your own training zone at varying "percentages of maximum heart rate", time your exercise, and provide a summary indicating average and maximum heart rate during the exercise. This means every heart rate monitor sold by Eastern Mountain Sports allows you to tune your workout to an appropriate intensity. In their off time, heart rate monitors are cool sport watches too!

Consider the ease of use when making your choice. Most monitors come with a watch and chest strap. That makes it very easy to monitor your stats during your workout. However, there are a few that don't require a chest strap, instead detecting your pulse by placing one or two fingers on sensor buttons. These cannot give you a constant reading of your pulse and are not as accurate as the chest strap models. In addition, it can be difficult to stop your workout, put your fingers on the sensors, wait for a reading, and then resume the workout.

Once you have chosen which features you want, it comes down to price. Sales are common and you can find a wide variation in the price of the same model. Shop around and you may be pleased to find your dream monitor for much less than suggested retail price. But the most important thing is to enjoy your workout!




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