Two aspects: a) if you stop training, you lose fitness, and b) as you become more fit, more work may be required to achieve overload and further fitness increases.
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I took it to mean the reversibility of a training effect. But agree that it’s not a term I’ve heard used in that context.
Also noticed the 15 hr comment and I thought wow how many times has an interviewer pressed a prominent coach or physiologist to throw a rough number of hours regarding intensity. They all dance around it. I’ve never understood why that is so hand wavey. Of course you can’t put a precise number on it but it’s not like it 6 hrs for you and 18 for me.
I think there is a smaller range there and it has always struck me as a bit over cautious not to say “it’s about 13”. And then the other guy says “oh it’s around 15”.
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Another thing that Coggan is explicit about is: Intensity compensates for Volume, up to a point , with the usual caveats of recovery.
I happen to agree with him.
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When people stop responding …
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not just negliggible influence but as AC pointed out, even an increase in fatox
(already shown several times here;)
But as AC pointed out, too, why should you care 
Refreshingly to different to the other AC. By the way the other AC and ISM ended up in my ignore bucket. Not really ignore because they always show up in my twitter timeline but I read their posts with a certain degree of amusement. With the other AC I often wonder if ChatGPT writes his posts.
If training adaptations were strictly regimented along zones, however defined, no beginners would ever get off the ground.
Coggan’s internet persona was very off-putting during the 1st gen polarized debates some 10yrs ago. Moreover, he struggled to convey the knowledge he had to the audience. For instance about SS not being studied. Now he has a good answer IMHO.
So, his recent podcasts within the last year or so have been very good, and his no-nonsense, first principles first kinda stance is presented in a robust manner.
I especially value his ability to communicate knowledge of the history of ex-phys to the wider public. Regarding the topic at hand, Coggan has for example clashed with Brooks on (fat) metabolism in scholarly debates in the 90s.
More generally one gets the impression that many currently hot takes and problems related to training are not necessarily very new at all. Brings to mind Maynard Keynes’ famous dictum: “Practical men, who believe themselves to be quite exempt from any intellectual influence, are usually the slaves of some defunct economist”.
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Even before. Not sure from how many internet forums he got thrown out. Quite bizzare for such a distinguished scientist. Jekyll and Hyde.
Still, as alluded to before, when it comes to what science can teach us for training he’s one of the few I really trust.
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He used to be here in this forum under @oldbutnotquitedead
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Was that really him? I wondered about a year ago if it was because the level of knowledge was obviously high, but he behaved exactly like Coggan did prior to getting thrown out of slowtwitch several years ago.
The guy is brilliant, but he needs to stay off of message boards.
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nope, do not spread rumours. this guy was clearly not AC.
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Bruh. The screen name was even wrong
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Agree. At the time, it was a joke. How do I know? Because I’m the one who made the joke.
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Marketing to people that want to believe. Every once in awhile he says something interesting.
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You guys should have appreciated him more while he was here….as rancid and crusty as he was.
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He sucked the life out of this place and constantly derailed topics. He stalked and drove a highly respected coach away from the site who was willing to share their knowledge freely. A good topic got deleted because of him.
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there are other reasons that thread got deleted
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It has always been tricky to tease out what ideas came from AC and what ideas are Hunter Allen. This recent podcast makes some areas a bit clearer.
Not only that, Coggan makes a subtle distinction between an exercise physiologist (his profession) and a sports scientist. I think this likely went over the heads of many. It does speak to why he simply doesn’t bother with certain questions in the field.
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Stop pedaling this nonsense.
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I started the thread and know exactly why it was deleted.
I hope to one day join the ranks of forum content creator