Garmin Edge 820 Owner's Manual page 63

lar strength and improve their level of fitness. A heart rate zone is a set range
of heartbeats per minute. The five commonly accepted heart rate zones are
numbered from 1 to 5 according to increasing intensity. Generally, heart rate
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zones are calculated based on percentages of your maximum heart rate.
Fitness Goals
Knowing your heart rate zones can help you measure and improve your fit-
ness by understanding and applying these principles.
• Your heart rate is a good measure of exercise intensity.
• Training in certain heart rate zones can help you improve cardiovascular
capacity and strength.
• Knowing your heart rate zones can prevent you from overtraining and can
decrease your risk of injury.
If you know your maximum heart rate, you can use the table
Zone Calculations, page 103)
fitness objectives.
If you do not know your maximum heart rate, use one of the calculators
available on the Internet. Some gyms and health centers can provide a test
that measures maximum heart rate. The default maximum heart rate is 220
minus your age.
Tips for Erratic Heart Rate Data
If the heart rate data is erratic or does not appear, you can try these tips.
• Reapply water to the electrodes and contact patches.
• Tighten the strap on your chest.
62
to determine the best heart rate zone for your
(Heart Rate
Edge 820
®