Hi guys, Does anyone find a big discrepency with their indoor vs outdoor ftp? I did a 40km ITT a few weeks ago and held an average of 290 Watts for 1:03hrs. Theoretically this gives me an FTP of 290W (maximum sustainable power for 1 hour). However, when training indoors I find it difficult to hold…

I’m kinda still searching for the answer to this… Simply: is the training effect and consequent fitness adaptation equal for indoor training, despite the fact that it occurs at a lower power output? Anyone? @mcneese.chad , @Nate_Pearson ?

I am guessing that you meant to tag Coach Chad Timmerman? If so, he is @ chad (without the space). I did that to keep from tagging him in my reply, but you can edit your post to tag him if that was your intention.

Yep - sorry other Chad! Nevertheless, you probably have something knowledgable/interesting to say on the subject :joy: @chad ?

im still convinced the only difference is due to cooling. Used to be an issue for me, got 2 massive fans now indoor=outdoor

[image] DaveQB: Another possible factor causing indoor differences for some of us (depending on equipment) may be trainer inertia I’m interested in exploring this a little more - mainly because I’m a poor climber but can turn over big gears on the flat well - the latter linked article applies…

ERG gearing discussion (lengthy). [image] Big vs Small Chainring - Same Power (ERG Mode Gearing) Training I recently did the Antelope workout which has 10-min intervals at around 90% FTP. Since I use a smart trainer in ERG mode, I normally do not shift gears and just leave…

Thanks for that. In fact I was thinking about this whilst out on the bike. Being an XCM MTB racer with climbing as my weakness and that “TT type effort” as my strength for me personally it makes sense to drop to the small chain ring to get some muscle force training from the lack of inertia.

Yes it is very common that your outdoor FTP is higher than your indoor one. I believe the primary reason most people mention about this is the cooling effect of riding outside, but I’m sure there are plenty of other factors.

Just want to re-iterate the initial question, which is not so much debating whether there is a difference (there usually is, and it seems that the cause is usually cooling). Instead, the question is: Given there is a difference in power output, is the training effect and subsequent fitness adaptati…

[image] TheGearedGuitarist: Given there is a difference in power output, is the training effect and subsequent fitness adaptation the same? I think physiologically you’re working harder indoors, but also you are working much more consistently. For example it’d be very hard to get a 20 min SS…

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Indoor Vs Outdoor FTP

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mcneese.chad August 4, 2019, 11:51am 59

ERG gearing discussion (lengthy).

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