Bkool FAQ last major update 05/01/2016 10:30
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Bkool Fitness Level
The bkool fitness levels are an arbitrary division of FTP as 95% of 20 minute average power per Kg, broken down into four categories and 10 sub categories:
Amateur 1-10, Active 1-10, Pro 1-10 and Elite 1-10.
Mens
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Womens
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The official FTP test is scheduled from the Fitness Level of your Bkool Profile (this only works if you are a premium member) and your fitness level will be determined using 95% of the average power from this 20 minute session, not including the additional warm up time. Note: the test may look like it is longer, but it stops automatically at 20 minutes.
If you do not do regular FTP tests your fitness level will be determined using 95% of the average power from any session over 30 minutes. Perhaps strangely, the 95% factor is still applied, even if the session is an hour or more. If the session includes any steep inclines, or any declines, it is less likely that this will give a good measure of your actual FTP, for a more accurate reading the official FTP test uses a constant 2% incline.
If you save a proper Bkool FTP test which gives a lower fitness level then your fitness level will be reduced immediately, but this only happens for normal 30 min+ sessions if you have not saved an FTP for two months.
FTP = Functional Threshold Power
By definition this is the maximum average power you can sustain for an hour, and is considered to be a good match for the power output at which you are on the threshold of producing more lactate than your body can deal with, your Lactate Threshold.
The FTP test on bkool actually measures the average power over 20 minutes, as an hour is a bit of a slog. You are supposed to apply a correction by taking 95% of the 20 minute figure to approximate the hour average, and hence 95% of your average power on the 20 minute FTP test gives an approximation for your FTP, which should be close to your Lactate Threshold.
Note: your FTP is not the result of the 20 minute FTP test, it is close to 95% of the result.
Your FTP is often quoted in Watts per Kg, which is considered a more useful measure of ability, especially when climbing, so divide the 95% figure by your weight in Kg.
For more accurate estimates of FTP, you can average your power over the full hour, and in either case you should precede the test with around 10 minutes of above FTP effort to exhaust any anaerobic capacity, i.e. your bodies ability to exceed your LT for short periods of time.
End of FAQ