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what % of FTP is sustainable for repeated surges

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Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

what % of FTP is sustainable for repeated surges

Old 05-18-15, 01:18 PM
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Yes, that's true. I have used the books and worked with coaches, but I don't fully understand the mechanisms. But as a rule of thumb, the longer intervals help get me to the end of the race; the shorter intervals help me do what needs to be done at the end of the race.
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Old 05-18-15, 02:00 PM
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Originally Posted by Willbird
I do not race anybody but me, but that rule does remind me to try to keep the same HR on a decline as an ascent (both are usually very short duration here). One of my favorite 8 mile stretches coming home is a lot more fun if you work as hard at the declines as you do the inclines. Fun to find the LTHR for the day and flirt with it :-).

What does a decline mean to you "I can take it easier now".....or "I can go faster now, and maybe carry 20+ over the next hill" ?
On the descents of the 40-50mph variety, overcoming the wind resistance would require such a high output of watts with such a low gain in speed, it doesn't make sense to pedal.
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Old 05-18-15, 02:24 PM
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Originally Posted by caloso
Actually, that's the point. One of my go-to workouts is 6x5' @ 105-110% with 1' rest between intervals. It's a great FTP lifter.
i do that one too, and like i mentioned before, i just cant imagine with 1 minute recoveries, that someone can repeatedly hit 140% FTP for 5 minutes, and do that for a few hours. im dead by the end of the 6th, or 7th interval.
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Old 05-18-15, 03:09 PM
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Originally Posted by greenlight149
i do that one too, and like i mentioned before, i just cant imagine with 1 minute recoveries, that someone can repeatedly hit 140% FTP for 5 minutes, and do that for a few hours. im dead by the end of the 6th, or 7th interval.
140% of FTP for 5 minutes, repeatedly? My first reaction is that this person is either a national-class pursuiter or he has his FTP set too low and needs to retest.
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Old 05-18-15, 03:19 PM
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Originally Posted by caloso
140% of FTP for 5 minutes, repeatedly? My first reaction is that this person is either a national-class pursuiter or he has his FTP set too low and needs to retest.

see post number 19 and 20, hes kid must be really good.
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Old 05-18-15, 03:30 PM
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Doge's kid probably could.
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Old 05-18-15, 03:32 PM
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Originally Posted by caloso
140% of FTP for 5 minutes, repeatedly? My first reaction is that this person is either a national-class pursuiter or he has his FTP set too low and needs to retest.
Not possible. With a 12min warmup and cooldown 6 intervals at 140% yield an NP of 119% and an AP of 106% which by definition is impossible.

Normally 5 min intervals @ 140% are VO2Max intervals and you want to fully recover, i.e. at least 5 min rest before the next one for maximum benefit. Shorter recoveries yield lower power in later intervals. 6 - 5 min intervals at 130% with 5 min rest still ends up with an NP well over 100% so again probably not possible.
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Old 05-18-15, 04:21 PM
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Yeah, that makes sense when you do the math like that. So that leaves "needs to retest."
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Old 05-19-15, 08:12 AM
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Originally Posted by greenlight149
anything over FTP is anaerobic? i dont think so.

you can do a 20 minute effort at 105% FTP, and its largely aerobic.
Like you said... "largely aerobic". There is no specific crossover where it goes from being aerobic to anaerobic.

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