I did a 40 minute interval over hilly terrain trying my best to hold about 200 watts. At the end of the ride, it turned out that my normalized power was 219. I noticed that for 37 minutes of the ride I held a normalized power of 210, then the last three minutes of the interval had a short steep hill that took 40 seconds to climb at a max of 702w and an average of 442w. I was surprised to see that this relatively short event had such an impact on the overall NP for the whole 40 minutes. How is the accuracy of NP when this occurs? BTW the real average was 200w with or without the hill.
mikey
mikey