So in your training you have to ascertain that your effort over x amount of time can not be ~ 10 watts over or under lets say 200 Watts?
You do not want random variability. It's a scientific measurement and you need it to consistently give you consistent readings.
The key is consistent readings.
@skinny started
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So in your training you have to ascertain that your effort over x amount of time can not be ~ 10 watts over or under lets say 200 Watts?