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Today I did 2x10min crazy crit type attacks and averaged 306W, with NP 339W and 370W.
I'm interested in the correlation between average & NP - Can I expect to drag my 10min average up to 370W then?
(I can give my 5min max, 20min max, FTP etc for reference, but I'm interested in general thoughts on this. I guess as the time intervals get longer the more average and NP converge?)
http://alex-cycle.blogspot.com.au/2008/ ... -sins.html
so with that in mind, my experience is that you should be able to come close to those NP figures as an average power.
Jumping on the ergo tomorrow and giving it a go is the best way to answer the question though.
dynaserve wrote:TP - Correct and I'm encouraged you think it's doable!
For most people that is approximately correct... but not for all.
When I do 20 60sec intervals with 90sec rest, I can get an NP more than 10% higher than I can ever do with a steady effort. For me the calculated NP is about twice as high over AP as it should be.
Read Alex's blog for a better understanding.
http://alex-cycle.blogspot.com/2013/03/ ... rt-ii.html
If you are looking for how much power you can sustain for 10 or 20min intervals just look at your power duration curve.
IMO it would make much more sense to look at your full spectrum of max output (1min, 3, 5, 10, etc) and compute the stress on your body based on how close you came to those limits.
For instance, my 60min (FTP) might be the same as another guys, but if my max 1min is 600W and his is 500W, and we do a bunch of 1 min intervals at 450W, he is accumulating a lot more stress than I am, and will not be able to continue as long.
But I do wholeheartedly agree that something needs to be improved as far as a TSS goes that truly captures anaerobic work done within a ride.
JimV wrote:Its still a worthless number. If you have to interpret its value based upon VI and length it looses its value as a tool for comparison. Most people get there best hour long efforts from road races and crits, and that is were NP is most useless.
You don't need to interpret it based on VI. All you need is sufficiently long enough time. Its designed to take variability in power from say a race and the sprint efforts required to stay with the group and normalize them so you can compare them to something like your FTP. If your NP from a race is 350w and the race was an hour, but you had your FTP set at 300w. NP is saying 350w is closer to your true FTP.
Thats it. Nothing special. Not hard to understand.
Tinea Pedis wrote:both still reach the one hour mark in close to the same state.
The example I gave earlier was 20x1min intervals where I can beat my NP for a steady effort of the same duration by >10%. The other mythical rider would not be able to accomplish this. If I dialed back my effort to a level that would result in *his* max, then I'd be reasonably fresh and he'd be exhausted. So not the same at all.
Another thing that is wonky is the small difference given a 100% effort vs say 95%. They are both afforded nearly the same amount of stress, but in reality the 100% effort is *much* more taxing. By 100% I mean cross-eyed, coughing blood, legs refusing to function, and collapse at the end. If I ride a 40K TT or anything longer at 100%, then I'll need several days to recover, while a 95% effort would be easy.
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