[Øistein Thomassen]

Øistein Thomassen on August 9, 2019 at 2:36 pm · in reply to: Lactate measurements for AeT confirmation? #26559

Just want to add that I performed the same test today but at approximately 170 bpm. Pa:hr = 5.26%. Quite surprised that the drift wasn’t that much more than at 160 bpm although I can certainly say that it felt a bit harder. However would that really be regarded as zone 3 considering the result from the today’s test result?

[Øistein Thomassen]

Øistein Thomassen on August 9, 2019 at 5:57 am · in reply to: Lactate measurements for AeT confirmation? #26538

Just wanted to add that I ran for an hour yesterday in flat terrain. I tried to keep the heart rate around 160. The Pa:Hr (TP) turned out to be 3,82%. That should suggest that I haven’t crossed the AeT? However is it worth trying to push it up to 5% going for a slightly higher heart rate? FYI the lactate reading was 1.0 mmol/L 2-3 minutes after the end of the run.

[Øistein Thomassen]

Øistein Thomassen on August 8, 2019 at 3:50 am · in reply to: Lactate measurements for AeT confirmation? #26465

Thanks for the clarifications Scott! I’ll do the 5% test as well to get an indication of the cardiac drift at different heart rates. Probably starting around 160 bpm (outdoor test).

Your comment “high level of aerobic fitness” is obviously very flattering but from my point of view quite far from the truth. Anyways, I’ve decided now that I’ll be consistent in the coming weeks and months and do lots of zone 1-2 running.

I’ve been training quite regularly over the last 8 years, however the volume would probably be considered (very) low by your standards. Over the first years I mainly did mountain biking, switching to running some 4 years ago. My heart rate has always been quite high though – during Ultrabirken 2015 in Norway (9+ hours, 133 km mountain bike race which you might have heard of) my average HR was 164 (and often in the 170 range). That’s probably also indicating that my AeT is around 170 for running i.e. the same as you conclude based on the lactate readings. 170 indeed feels slighly more intense than 160-165 however, the only risk of injury or overtraining is if the volume is very high, isn’t it? And if I feel quite ok the next day and the resting HR is not increasing, there is no worries when it comes to just keep on running in the 165-170 range?

Dada, the lactate readings are actually merged from several runs with different intensities, however the curve seem to be quite consistent when I add new data. Usually I’ve eaten a couple of hours before the run.

Thanks again.

[Øistein Thomassen]

Øistein Thomassen on August 6, 2019 at 9:52 am · in reply to: Lactate measurements for AeT confirmation? #26306

Thanks for your reply dada. Do you know how reliable this is compared with doing a VO2max test (which from my understanding is the only test which really give you the correct values? Could it be a theoretical possibility that my fat burning levels out at 150 even though lactate doesn’t start to rise before 160+ hence overestimating the HRfor fatmax?