Precor EFX534i - Manual (Page 76)

Random Program
The Random Program can be accessed by pressing the VARIETY
key. Every time the Random program is selected, a different
program profile appears. The columns that appear in the program
profile show the preprogrammed incline. You can override the
preprogrammed incline at any time using the INCLINE keys.
The running belt speed is completely under your control. You can
adjust the pace by pressing the SPEED keys.
Heart Rate Program
The Basic HRC Program, available by pressing the HEART RATE
key, lets you set a target for your heart rate. The program adjusts
the incline to maintain your heart rate within two beats per minute
of the target heart rate while you exercise. To use this program, you
must enter your age and wear a chest strap so your heart rate can
be monitored throughout the session.
Important: Consult your physician to determine the appropriate
target heart rate for your age and fitness level. If your physician
recommends a different target heart rate than the one that appears
on the display, use the navigational arrow keys to change the
target heart rate once you finish the warm-up period. Do not
exercise over the recommended range.
User's Reference Manual: Programs 30