Originally Posted by
asgelle
Wrong. First you claim zero's are ignored in NP, now you try to cover up by saying they're not ignored, but the NP calculation cancels out the zero's. This is not true, 0 power values are given the same weight and importance as any other power value. If NP happens to look similar to average power without zero's it's purely by coincidence. Stop digging.
He's not that far off, as long as the zero power times are "reasonable".
When you take the fourth root of the average of the fourth power of a series of numbers, big numbers are going to utterly dominate the result.
For example:
One hour at 300W, steady. NP is 300W, obviously.
55 min at 300W, steady, 5 min at 0W? I get an NP of 293W. Not much different at all.
Start doing intervals with peak power over 1kW and some sustained 30-sec averages well north of 500W, and zeros really won't matter at all.