Falling:  The biggest risk of the test is falling on the treadmill.  We mitigate this risk by going through the process before the test, and wearing the treadmill safety clip. Fear of blood and needles:  If you don't like seeing your own blood or getting needles, you will be at a higher risk of falling during the test.  You will likely see some blood, and your finger is going to get poked several times.  This test might not be appropriate for you if you react strongly to seeing blood or getting needles. PAR-Q:  Before the test, you should have been screened using a PAR-Q form to assess your readiness for physical activity.  If you are on any medications or believe there is any reason that you should not be performing aerobic physical activity, please let your tester know.  Medical consultation may be required before performing this test.   Physical activity risk:  There are risks to any form of physical activity.  We mitigate these risks by screening you thoroughly before the test.  If there is an elevated risk, we refer to the appropriate medical provider before performing this test.  If there is no known additional risk, we can schedule the test and begin!