Using SmartRate
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this feature.
During your workout, SmartRate
®
maps your heart rate
on a scale of different target zones that show you what
kind of conditioning you’re getting. These zones are
defined as percentages of your maximum heart rate.
Your maximum heart rate is based on the following
formula:
Heart rate limit in beats per minute = 207 beats per
minute – (your age in years × 0.67)
Note: You may have better results using a chest
transmitter strap.
At any time during your workout, your actual heart rate
is some percentage of this number. SmartRate uses
that percentage to find your current zone. For example,
if you were 35 years old and wanted to work out in the
suggested cardiovascular zone, your target heart rate
would be between 128 and 154 beats per minute.
(207-(35 × 0.67)) × 70% = 128 beats per minute
(207-(35 × 0.67)) × 84% = 154 beats per minute
The following table shows the percentage ranges for
each zone.
Table 2. SmartRate zone boundaries
Heart Rate Range SmartRate Zone
Less than 54% of limit Warm-up
55%–69% of limit Moderate (good for weight
loss)
70%–84% of limit High (good for
cardiovascular conditioning)
Above 85% of limit Maximum
CAUTION: Your heart rate should never exceed 85% of
your maximum heart rate or go into the Maximum zone. If
it does, reduce the intensity of your workout
IMMEDIATELY.
Measuring Your Heart Rate 27
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