Precor 9.35 Owner's Manual page 18

Low-impact treadmill
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Table 1 shows the percents used in calculating the heart rate
target zones. While your heart rate remains within these
zones, the corresponding lights blink and provide a visual cue.
The calculation used to determine your maximum aerobic heart
rate is (220 minus your age). When you multiply it by the
percent indicated in Table 1, you can understand the relation-
ship between the pulsating LED and your target heart rate.
CAUTION: Your heart rate should never exceed 85% of
your maximum aerobic heart rate or go above PEAK. If it
does, immediately reduce your pace or adjust the incline
to return your heart rate to your physician-recommended
target zone.
Owner's Manual: Heart Rate Features
Table 1. Heart rate target zones and SmartRate LEDs
Heart Rate Zone
Percent
LED Lit
Below 50
First
50 to 54
Second
55 to 59
Third
60 to 64
Fourth
65 to 69
Fifth
70 to 74
Sixth
75 to 79
Seventh
80 to 84
Eight
85 to 87
Ninth
Above 87
Tenth
The SmartRate indicator lights do not appear when:
You press QUICKSTART at the banner.
You do not enter your age before starting a program.
You do not wear or improperly position the chest strap.
You fail to grasp both touch-sensitive handrail grips for
five to ten seconds.
LED Blinking
Orange
Orange
Green
Green
Green
Green
Green
Green
Orange
Orange
16

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