Cosmed Quark PFT, Manual

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130 - Quark PFT User Manual
Performing the test
In this chapter it is supposed that the user is able to:
•
perform an exercise test
•
create exercise protocols
•
view, edit and print tests
If this is not the case, please read the Exercise testing chapter.
To perform a sub-maximal test, follow these instructions:
1. Create a proper protocol (procedural guidelines for several sub-maximal testing
protocols are provided in [ACSM’s Guidelines for Exercise Testing and
Prescription, 6
th
Edition Philadelphia: Williams&Wilkins, 2000:22-29] ).
2. Start an exercise test.
3. Perform the test as it were a maximal exercise test, ending it when the heart rate
reaches the 85% of the Hrmax, or it happens an event listed in the section Test
termination .
4. Display a VO
2
/Kg vs. HR plot
5. Right-click on the graph and select VO
2
submax from the pop-up menu.
If the predicted HR max (calculated as 220-age) is not suitable for the patient tested, it
is possible to edit the HR max value from the
View/Information… page.
An example of testing protocol
An example of protocol is reported here. The YMCA cycle ergometry protocol is
defined as follows.
1
st
step: workload 150 kgm/min
2
nd
step: if the HR at the end of the 1
st
step is: <80 80-89 90-100 >100
set the workload at (kgm/min) 750 600 450 300
3
rd
step: if the HR at the end of the 2
nd
step is: <80 80-89 90-100 >100
set the workload at (kgm/min) 900 750 600 450
4
th
step: if the HR at the end of the 3
rd
step is: <80 80-89 90-100 >100
set the workload at (kgm/min) 1050 900 750 600