Power Ratios

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There are three numbers you should care about if your an endurance cyclist/triathlete: aerobic power, anaerobic power, and V02 max power. 

Aerobic power, the most important to an endurance athlete, can only be found accurately from testingAnaerobic power also called functional threshold power (or your one hour average power) is easier to guesstimate but should also be done through testing.  V02 max power is your average wattage output for about 5 minutes of cycling (also given after a test).  This is an all out effort and you should have nothing left at the end of this time. These three numbers describe the functional output of your body and where training should be targeted. 

Here is an example of a recent test result:

Aerobic power (AP) = 220W  Anaerobic Power (AAP) = 270W  V02 Max Power (V02) = 325W

Ideally, AP/V02 = 70-75%, AAP/V02 = 80-85%

Athlete: AP/V02 = 68%, AAP/V02 = 83%

After looking at the ratios for this athlete, there needs to be a slight improvement in anaerobic power and more work needs to be done to increase aerobic power.  Recommendations would be to focus more on longer easier rides as this will strengthen both these areas.  Overall this athlete is getting close to maxing out their current capacity and will have to focus on improving their ceiling.

For more information about testing and how it can help you, please send me an email!

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