The WFI (Wellness Fitness Initiative) protocol is a modified Gerkin test used by firefighters to evaluate
aerobic fitness capacity as part of pre-employment testing and annual fitness testing. The goal is to meet
or exceed 12 minutes and 30 seconds. This assessment is a series of one-minute intervals, alternating
between speed and percent grade.
To enter into this workout on a 5x, use the following guidelines.
1) Choose the WFI test by pressing the FITNESS TEST workout button until WFI is shown in the
message window and
press ENTER.
2) Enter age using the ARROW KEYS or the NUMBER KEYPAD and press ENTER
3) The message window will display your target heart rate based upon your age and the target heart
rate zone of 85%.
4) Select gender using the ARROW KEYS and press ENTER.
5) Enter user height (user height is used to calculate the caloric expenditure value-providing an
accurate height helps to ensure an accurate caloric expenditure rating for each user) using the
ARROW KEYS or the NUMBER KEYPAD and press ENTER.
6) Enter user weight (user weight is used to calculate the caloric expenditure value-providing an
accurate weight helps to ensure an accurate caloric expenditure rating for each user) using the
ARROW KEYS or the NUMBER KEYPAD and press ENTER.
7) A Body Mass Index number (BMI) is displayed based on the user’s gender, height and weight.
8) The message window will notify the user that the start speed is 3.0 mph (4.8 kph) and 0% incline
during the warm-up.
9) Press GO to begin the workout.
Note: Programs may vary based on model and default settings.
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