Page 10
Once the test is completed, the user should cool down
for a minimum of 2 minutes at 39 steps/min.
The test is aborted with no results if any of the follow-
ing occurs:
•
The user stops or pauses the workout at any point during
the test.
•
The [STOP] key is pressed.
•
The THR has not been met after 16 minutes previous
work level.
•
The Heart Rate signal is lost.
•
The equipment malfunctions.
Target HR =
[208 - (0.7* Age)] * 0.85
BMI
(in - Ibs) =
703* Weight (Ibs) / Height (inches)2
BMI (cm - kg) = Weight (Kg) / Height (cm/100)2 VO2max
= 57.774 + (1.757 x time) - (0.904 x BMI)
The WFI test assesses aerobic capacity expressed as
VO2max. The results are calculated and recorded in
milliliters (ml) of oxygen per kilogram (kg) of body
weight per minute (V02 max).
These aerobic assessments are submaximal and are
based on the heart rate response during graded
exercise. Accurate estimation of maximal heart rate
(MHR) is critical to the submaximal prediction used
in these assessments. A new formula for calculating
maximal heart rate is utilized with these protocols, it
more accurately accounts for age-related reduction of
MHR. Be aware that the heart rate can be affected by
variables such as body temperature, hydration state,
anxiety, stress and medications. In addition to heart rate,
body mass (height-to-weight ratio), is also a significant
variable in both prediction equations. The relation-
ship between height and weight is recorded as Body
Mass Index (BMI). It is important to note that BMI is not
being used in these aerobic protocols to estimate body
composition; but rather, is used to represent the mass of
each participant.
The test starts at 46 steps/min for 2 minutes, then 53
steps/min for 1 minute (warm-up period). The test
time includes the warm-up time. The test is a series of
1-minute intervals with increasing work loads on each
subsequent minute.
Note: Once the test starts, the user should not maintain a hold
or lean on the handrails; this will result in overestimation of
aerobic capacity.
The test is complete when the heart rate exceeds the
Target Heart Rate (THR) for 15 seconds. The total Test
Time (TT) begins from the time the user starts on the
StepMill, to the point at which the user exceeds their
THR. It does not include the final 15 second qualification
period that the heart rate was above the THR.
The qualification period is to verify the user’s heart rate
does not exceed the target, and then drop down to the
THR or below for 15 seconds, if it does, then the test
continues.
WFI TEST:
WFI Test Program:
