Precor 9.31, 9.33 manual Heart rate target zones and SmartRate LEDs

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.

Table 1. Heart rate target zones and SmartRate LEDs

Heart Rate Zone
Percent	LED Blinking	Label
Below 55	First	WARMUP
55 to 61	Second	FATBURN
62 to 69	Third	FATBURN
70 to 77	Fourth	CARDIO
78 to 84	Fifth	CARDIO
85 to 87	Sixth	PEAK
Above 87	Seventh	HIGH

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 grips on the 9.33 for five to ten seconds.

Owner’s Manual: Heart Rate Features 15