Precor TRM 425 Owner's Manual page 34

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 11: Heart rate target zones
Measuring Your Heart Rate
On the Workout List, you can find several
preprogrammed 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.
High
Cardio
Fat Burn
Warm Up
29