LifeFitness 91Xi Operation Manual page 18

E W
NTERING EIGHT
When prompted by the MESSAGE CENTER to enter weight, use the ARROW KEYS to
increase or decrease the displayed weight to the correct value (or key in the correct value with
the NUMERIC KEYPAD) and press ENTER. The default weight is 150 pounds or 68 kilograms.
The on-board computer calculates the number and rate of calories burned using the entered
weight as well as the pedaling speed.
E A
NTERING GE
When prompted by the MESSAGE CENTER to enter age, use the ARROW KEYS to increase or
decrease the displayed age to the correct value (or key in the correct value with the NUMERIC
KEYPAD) and press ENTER.
Life Fitness Total Body Trainer workout programs that set a target heart rate* zone first calculate
the user's theoretical maximum heart rate
The programs then calculate the target zone as a percentage of the theoretical maximum.
E T
NTERING IME
When prompted by the MESSAGE CENTER to enter a time, use the ARROW KEYS to increase
or decrease the displayed time to the desired value (or key in the desired value with the
NUMERIC KEYPAD) and press ENTER.
S
ELECTING AND
When prompted by the MESSAGE CENTER, use the ARROW KEYS to increase or decrease the
displayed intensity level or target heart rate* to the desired value (or key in the desired value with the
NUMERIC keypad) and press ENTER. Adjust the level as needed or desired during the workout.
• Resistance level: The Life Fitness Total Body Trainer provides a selection of 25 resistance
levels. The resistance level appears in the WORKOUT PROFILE window as rows of lights
arranged in columns. Selecting a low intensity level at first is recommended. As physical
conditioning improves, the levels can increase.
• Target heart rate: Programs that calculate a target heart rate base this number on the age of
the user and the type of workout. The user accepts or adjusts the rate when setting up the
workout. During the workout itself, the program reads the heart rate, which is transmitted via
the heart rate chest strap or the Lifepulse system sensors; it uses this data to adjust the
resistance. Manually raising the rate increases the intensity of the cardiovascular exercise.
Defined by the American College of Sports Medicine's "Guidelines for Exercise Testing and Prescription" as equal to
†
220 minus an individual's age.
* Target Heart Rate (THR) is a percentage of the theoretical maximum. For example, a 40-year-old user's THR for the FAT
BURN workout is 117. This workout targets 65 percent of the maximum, so the equation would be (220-40)*.65=117.
A R
DJUSTING THE
by subtracting the user's age from the number 220.
†
L
ESISTANCE EVEL
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