How do people approximately calculate their LT1 and LT 2 without a blood test?

Today’s ride was what I’d call “endurance plus” where it kind of rides the line between endurance and tempo, but not really proper tempo where it takes a good amount of concentration to maintain. A hard 4 or an easy 5 out of 10 on the RPE scale. I was pretty fresh and off a good ride yesterday where…

And there’s also a reason people are slower when it is hot, ie the extra physiological strain of cooling your body lowers your ability to make power. There are some who dont, but most have impaired fitness in the heat. That is why you should listen to your body, if you stick to power, you are no lon…

Like altitude you may experience a temporary drop in FTP when the weather gets hot, although you can get heat acclimated over several weeks and return to near normal FTP. Therefore what to do about hot weather is up for debate: [image] Should Cycling Power Ranges Be Adjusted For Temperatur…

Not sure I am adding anything meaningful to the debate here other than my thoughts but I have been playing around with ballparking/ assessing my LT1 with the means at my disposal eg. no ability to use HRV Logger or blood test currently. As a newbie to this, I started off with this spreadsheet (see …

Just adding my 2cents on A1 = 0.75 For me it comes in around SST effort/HR. Have spent quite a bit of time debugging and trying different things. I am just coming back to fitness after a break and 0.75 does equal my old LT1 (if I had to guess). Will test is once a month and see if it starts to ali…

New research paper is out: [image] Detection of the Anaerobic Threshold in Endurance Sports: Validation of a New... Past attempts to define an anaerobic threshold (AnT) have relied upon gas exchange kinetics, lactate testing and field-based evaluations. DFA a1, an index of heart rate (HR…

Interesting…they are suggesting that .5 is a reasonable surrogate for FTP… I’ll have to look at my data for that.

Really wish tr would collect hrv in the app. They would have such a massive data set of alpha 1 values from all the ramp tests. True the steps are shorter so might not give the true value but have a feeling there is still a large amount of correlation

[image] enki42: They would have such a massive data set of alpha 1 values from all the ramp tests. But there is also rough correlation between ramp test and FTP, so then you have to find correlation between ramp test and longer 40-60 min test etc. With ramp test you will have great correlatio…

I don’t understand what you’re getting at. Ramp test goes to failure and Alpha 1 = .75 should happen way before that. and alpha 1 = .5 may also be hit. This should have a much stronger correlation than just assuming a percent of your power number. I’m not talking just a correlation for the sake o…

Calculating LT1 and LT2 approximately without a blood test?

Training

enki42 April 26, 2021, 5:39pm 62

New research paper is out:

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Calculating LT1 and LT2 approximately without a blood test?

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