Precor EFX 447 Owner's Manual page 32

The following graph shows how your effective heart
rate ranges vary with your age.
Heart Rate Target Zones
200
190
180
170
160
150
140
130
120
110
100
90
80
70
20 25 30 35 40 45 50 55 60 65 70 75
Your Age
Figure 17: Heart rate target zones
Measuring Your Heart Rate
On the Workout List, you can find several heart rate
workouts (refer to Available Workouts). These workout
courses automatically manage your heart rate at a
target level based on your age. By monitoring your
heart rate and making changes to the equipment's
settings as you exercise, the workouts keep your heart
rate within a few beats per minute of the target rate.
Maximum
High
Moderate
Warm-up
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