Precor 9.21 Treadmill User Manual


 
Owner’s Manual: Programs 22
Interval (INTV) Program
The Interval Program is among
the best for conditioning your
cardiovascular system. The
program raises and lowers your
level of exertion repeatedly for a
specified period of time.
When you begin the program,
the speed and incline are preset.
You can change the speed and incline levels using the
arrow keys. Refer to Diagram 8. The settings are repeated
throughout the program.
Diagram 8: Rest and work profile in the Interval Program
To change a setting, press the appropriate arrow key and
continue. The change is applied to the remaining intervals.
Two audible beeps let you know when the speed is about
to change.
When you complete the program, any changes made to
the incline and speed settings are not saved.
Random (RAND) Program
Every time the Random Program
is selected, a different program
profile appears. The columns
that appear in the program
profile maintain a set incline that
you can override using the
INCLINE arrow keys. The incline
is preset to zero for the first
column. The maximum incline change allowed between
columns is plus or minus 4%.
The running belt speed is completely under your control
and can be adjusted using the SPEED arrow keys.
Rest interval
Work interval
UGuide_A4.book Page 22 Wednesday, February 27, 2008 3:36 PM