Precor EFX 5.21i - Manual (Page 30)

Owner’s Manual: Programs 28
• Maintain a level of exertion so that the second LED blinks
in the SmartRate display during rest intervals.
• During the work intervals, increase your level of exertion so
that the fourth LED blinks.
For more information about the SmartRate display, refer to
Using SmartRate.
Diagram 8: Rest and work intervals
Note: If you want to purchase the heart rate feature for your
EFX, contact your local dealer. Refer to Obtaining Service.
Heart Rate Control (HRC) Program
The Heart Rate Control program lets you set a target for your
heart rate. The program adjusts the resistance to maintain
your heart rate within two beats per minute of the target
heart rate while you exercise. To use this program, you must
wear the chest strap so the program can monitor your heart
rate throughout the session
During your workout, the number that represents your heart
rate appears when the HEART RATE LED is lit.
For information about understanding your target heart rate,
refer to Heart Rate Features.
Rest interval Work interval
HRC