First, a correction, Tinman stated 3.0 mmol for the 1.10*(5K_Race_Pace) conversion, not 3.5 mmol as I wrote. In fact, here is the link to that thread. Jack Daniels (jtupper) posts on it too. They were talking about this 19 years ago! Tinman references Jan Olbrecht on the thread. His book, The Science of Winning, is an excellent source for those interested in how bioenergetics and lactate interplay, as well as the athletes individual physiology. Btw, I believe he was the originator of the 30 min TT that cycling coaches later picked up and called Functional Threshold. He didn’t think it anymore useful than other tests though because it didn’t provide any insight into what the mechanism driving the results was. Sorry lexel LOL
With that out of the way, I agree with the sentiment that we all agree on the generalities of this training approach. I don’t think there is one definitive way you have to train. To me, the superior way is the way that gets you fit and keeps you progressing and inspired!
@Unbelief. There is such a range of terminology and quantification when it comes to LT1 and LT2 that I would never say, “It has to be this value.” I only gave the values to share what Tinman wrote (even though I did so incorrectly). I’m not that dogmatic nor insistent LOL.
I’ve seen LT1 (the initial rise in lactate above baseline), given as 2.0-2.5 mmol in the research. I’ve even seen some refer to it as a 1.0 mmol rise above baseline. This is part of my point on why runners without a lactate meter (even those with one who are disinclined to order more strips) can use paces at different time durations and be confident they are in the correct range. Personally, as sirpoc has also shared, I go by effort. I know the feeling I want to have at different stages of the workout and try to tune in to that sensory data. I find it’s also helpful to have that ability to utilize in races to properly allocate your energy.
There is however a positive linear relationship between oxygen up take and intensity. That relationship, averaged for all runners is what allows for the race and training pace formulas we see from Daniels and others like Tinman and Mcmillan. Those make use of the fact that the percentage of ones VO2 Max being used for any given duration is the same. If you set a distance, say 10K, and one runner covers it in 30 minutes and the other in 40 minutes, those runners will be at approximately 93% and 91% of their VO2Max, respectively. However, set time as the standard and both athletes will be working at the same relative effort in relation to their max but one will cover more distance in that time.
All that bloviating to say, equating workouts and workload is likely more accurate and easily achieved by using pace in relation to max effort for a duration, not lactate. That’s largely why, forced to by no one but myself, I’d advocate 30 minute, 60 minute, 90 minute, and 150 minute race paces. One it allows for variety, which it’s said is the spice of life. Two, it spans the spectrum of intensities which show really good bang for your buck, while also fitting into the “Tempo Training” approach we are discussing. Plus, it’s sustainable over the long term.
In the context of the three workouts per week and very much in line with what sirpoc is doing already would be the following
1. 90 sec repeats @ 30 min RP = 1.03*5K_Pace
2. 3 min repeats @ 60 min RP = 1.07*5K_Pace
3. 6 min repeats @ 90 min RP = 1.10*5K_Pace
A fourth option for when the kids are at the grandparents and the wife is on a Real Housewives bender.
4. 12 min repeats @ 150 min RP = 1.13*5KPace
You could use 1 min recoveries for all of those and just scale the volume to suit your fitness and savagery.