Spirit CT900 Owner's Manual page 21

WFI
The WFI test is a modified Gerkin protocol. The actual test is the same as the Gerkin chart above, but
the score is calculated differently.
Before the Gerkin/ WFI Test:
1. Make sure you are in good health; check with your physician before performing any exercise if you
are over the age of 35 or persons with pre-existing health conditions.
2. Make sure you have warmed up and stretched before taking the test.
3. Do not take in caffeine before the test.
4. Hold the hand grips gently, do not tense up.
During the Test
1. The console must be receiving a steady heart rate for the test to begin. You may use the hand
pulse sensors or wear a heart rate chest strap transmitter.
2. The test will start with a 3-minute warm-up at 3 MPH / 4.8 kph before the actual test begins.
3. The data shown during the test is:
a. Time indicates total elapsed time
b. Incline in percent grade
c. Distance in Miles or Kilometers depending on preset parameter.
d. Speed in MPH or KPH depending on preset parameter.
e. Target Heart Rate and Actual Heart Rate are shown in the Message Window.
After the Test
1. Cool down for about one to three minutes.
2. Take note of your score because the console will automatically return to the start-up mode after a
few minutes.
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