
16  | TOPCOM HB 6M00  | 
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9.3 EXERCISE ZONES
Exercise zones are established by setting the upper and lower heart rate limits. These limits constitute a certain percentage of your estimated maximum heart rate (EMHR).
The following formula will help you to make an educated guess:
EMHR = 220 - (Your age)
Use the following heart rate zone Chart to select the zone you wish to exercise in. You should consult a medical professional when selecting a training zone, especially if you have a heart condition.
zone  | zone  | zone  | zone  | ||
1  | 2  | 3  | 4  | 
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  | 
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  | Above  | zone  | 
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Upper
limit ![]()
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 In zone
Lower
limit ![]()
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 Below zone
Heart rate zone
There are 4 heart rate alert zones, zone 1 
•Zone 1- 3 are predefined as shown in the table above: Zone 1= health
Zone 2 = fitness Zone 3 = performance
•Zone 4 can be user defined. See “6.8 Heart rate settings (8 - 9)” .
Heart rate zone