Precor Low Impact 9.31 - Manual (Page 13)

Owner’s Manual: Heart Rate Features 11
Heart Rate Features
Heart rate and SmartRate ® features are available when the
heart rate receiver is installed in the display console and you
wear a chest strap. During a workout, a number representing
your heart rate is displayed. The heart rate LED pulses when
a heartbeat is detected.
Note: The heart rate receiver and chest strap are optional
purchase items for the M9.31 treadmill. If you are interested
in purchasing this option, refer to Obtaining Service.
Guidelines
Read the following before using the heart rate feature.
• Consult your physician before engaging in any vigorous
exercise. Do not use the heart rate features until
authorized by your physician.
• Know your heart rate (pulse) and your physician-
recommended heart rate target zone. Individual heart
rates vary according to several physiological factors and
may not correspond directly with Diagram 5.
Diagram 5: Heart rate target zones
• The target heart rate is determined using a simple
calculation:
(220 minus age) multiplied by 70%
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