Heart rate monitors are used during exercise to monitor the intensity of your workout. If your heart rate is too high, you may find yourself tiring quickly. If your heart rate is too low, you may not be reaping the optimal benefits from your workout. The type of heart rate monitor and how it is used affects the accuracy of your readings.
Incorrect Calculations
The calculations provided by the manufacturer of the heart rate monitor may alter the effectiveness of your workout. Although the readings may be correct, the manufacturer may have given you an inaccurate formula to use to calculate your maximum heart rate. The typical formula provided is 220 minus your age. However, according to a July 2010 study conducted at Northwestern Medicine in College, the correct formula for a woman's maximum heart rate is 206 minus 88 percent of her age. For instance, a 30-year-old woman would have a maximum heart rate of 180.
Interference
If you are exercising near places where you may experience electrical interference, it can affect the accuracy of your heart rate monitor. Power lines and cell phone towers can cause the readings on the heart rate monitor to display incorrectly. If your readings seem much higher than they should be, try moving to a new location and then resume your workout. You can stop and take your pulse if you believe the readings on the heart rate monitor are not correct.
Types
The type of heart rate monitor you use affects the accuracy of the readings. Typically, types using a chest strap are more accurate than strapless versions, according to the Simply Fitness Gear website. Chest straps can continually transmit your heart rate reading to a wireless monitor. With a strapless version, you must discontinue exercise and place your fingers on pulse grips to receive a reading.
Considerations
To ensure accuracy of your heart rate monitor, follow all directions provided by the manufacturer. The chest strap should be secured and you should not feel any slippage during exercise. Check and change batteries often since a low or dead battery may affect accuracy.
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