Jono, i think at the base of our position there is some misunderstanding.
Of course, longer is the race, higher is the intervention of the aerobic system.
However, it’s a fact that the lactate accumulation during a competition of 800m becomes higher during the second lap, reaching the top at the end of the competition.
The fact that, during the second lap, the AEROBIC COMPONENT has a higher percentage than during the first lap, doesn’t mean that the second lap is MORE AEROBIC, because the athlete has to face a quantity of lactate growing at every meter.
This is a simple SPECULATION that physiologists can do, but is a USELESS exercise.
The real question is : What we have to do in order to be able to run, without dramatically slowing down the speed, when the lactate accumulation continues to raise ?
Under the methodological point of view, we need to work for increasing BOTH the LACTIC CAPACITY and the LACTIC RESISTANCE.
For giving an idea, about two runners with 1’44” of PB (one fast type, 46” in 400m, the other resistant type, 47”5 in 400m but 3’33” in 1500m, we can have a STAIRS of intensity of this type :
FAST RUNNER :
RIGENERATION SPEED (doesn’t have the mean of training, but is used for recovery only) : every speed slower than 50% of the race speed (race time is 13” every 100m, so this means 26” every 100m = 4’20” per km = 7’ per Mile, and the speed is 27.69 km / h), so slower than 13.85 km / h.
GENERAL RESISTANCE SPEED (developing the aerobic system at low intensity, mainly for the capillarization) : speed between 50% and 55% of the race speed (between 13.85 and 15.2 km / h = 26” >`` 6’23” per Mile)
BASIC ENDURANCE SPEED (developing the aerobic system at medium intensity) : speed between 55% and 60% of the race speed (between 15.2 and 16.6 km / h = 23”7 %%`` 5’46” per Mile)
SPECIFIC ENDURANCE SPEED (developing the Aerobic Power at high intensity) : speed between 60% and 65% of the race speed (between 16.6 and 18 km / h = 21”7 %%`` 5’22” per Mile)
All these speeds are developed using continuous run or, in the case of Specific Endurance Speed, long intervals (not shorter than 2000m).
LACTIC RESISTANCE SPEED (developing the level of Lactic Threshold and the ability to remove lactate in faster time) : speed between 65% and 75% of the race speed (between 18.0 and 20.75 km / h = 20” %%`` 4’40” per Mile)
LACTIC CAPACITY SPEED (developing the ability to PRODUCE Lactate and to sustain a high lactate accumulation in the muscle fibers) : speed between 90% and 98% of the race speed (between 24.9 and 27.05 km / h = 14”45 %%`` 13”3 every 100m)
LACTIC POWER SPEED (developing the ability to produce the higher quantity of lactate during the time of the performance) : speed between 102% and 104% of the race speed (between 28.24 and 28.8 km / h = 12”75 %%`` 12”5 every 100m)
For improving these qualities, we use the system of repetitions : when we speak of the Lactic Resistance, the total volume of repetitions can be from 4000m to 6000m, instead for Lactic Capacity can be between 1500m and 2000m, of course with wide recovery (8’ %%`` 12’).
Instead, if we look at the RESISTANT RUNNER, we can have the following parameters :
RIGENERATION SPEED : same as the Fast runner
GENERAL RESISTANCE SPEED : same as the Fast runner
BASIC ENDURANCE SPEED (developing the aerobic system at medium intensity) : speed between 55% and 65% of the race speed (between 15.2 and 18 km / h = 23”7 %%`` 5’22” per Mile)
SPECIFIC ENDURANCE SPEED (developing the Aerobic Power at high intensity) : speed between 65% and 70% of the race speed (between 18 and 19.4 km / h = 20” %%`` 5’ per Mile)
All these speeds are developed using continuous run or, in the case of Specific Endurance Speed, long intervals (not shorter than 2000m).
LACTIC RESISTANCE SPEED (developing the level of Lactic Threshold and the ability to removcannote lactate in faster time) : speed between 75% and 83% of the race speed (between 20.75 and 23 km / h = 17”4 %%`` 4’14” per Mile)
LACTIC CAPACITY SPEED (developing the ability to PRODUCE Lactate and to sustain a high lactate accumulation in the muscle fibers) : speed between 90% and 98% of the race speed (between 24.9 and 27.05 km / h = 14”45 %%`` 13”3 every 100m)
LACTIC POWER SPEED (developing the ability to produce the higher quantity of lactate during the time of the performance) : speed between 102% and 104% of the race speed (between 28.24 and 28.8 km / h = 12”75 %%< 12”5 every 100m)
It’s clear the methodological difference between the two typologies is in the speed and the volume of the workouts of Basic Endurance, Specific Endurance and Lactic Resistance, since the Resistant runner has the aerobic quality more strong, and for that reason can reach the same speed of the Fast runner using his aerobic system in higher percentage than the other.
One of the problems between the “official” physiology and the methodology is that always the methodology arrives to open new visions of training BEFORE the physiology, which is a DEDUCTIVE SCIENCE, so can only explain what really happens.
But the investigations physiologists make with their tested people using their protocols (always the same) cannot produce a MATHEMATIC TREND. This is a big mistake the most part of physiologists do.
If we test 3 groups of people (one not training, one running 3 times per week for 30’ easy, another running every day for 1 hour at medium pace) of course we have 3 different points, but we are wrong thinking the trend can follow the same graphic when, for example, we test someone running twice per day with higher intensity, or when we can investigate what happens in the body of a top athlete, having different physiological talent at the beginning, different quality in training and different volume of this quality.
This is the big mistake there is, for example, when people speaks about the EPO effects.
If EPO can enhance the ability to transport Oxygen of about 30% in case of people with kidney disease needing dialysis, can, for example, enhance the same ability of 20% in people in good health but not trained, about 10% in athletes with medium talent, and NOTHING in case of top talented athletes, BECAUSE THEIR TALENT INCLUDE THE POSSIBILITY TO REACH PARTICULAR SITUATION THROUGH THEIR TRAINING (for example, to increase the total volume of blood of 25%) THAT MAKE NOT POSSIBLE THE INTERVENTION OF ANY BLOOD DOPING IN ORDER TO INCREASE THEIR AEROBIC QUALITIES.
And another fact : in methodology, we use to give a name to THE TYPE OF TRAINING WE DO, not to the effect.
For example, running 3 sets of 6 times 80m at 98% of max speed with 1’30” recovery between every test and 6’ between every set, for coaches is, obviously, a workout of SHORT SPEED ENDURANCE, considered a Lactic type of training. Instead, the final goal is to improve the ability to use Oxygen in the Fast fibers, since the recovery of the small quantity of lactate produced during one set happens in oxidative way, so we can say this training has an AEROBIC EFFECT.
Last thing : it’s absolutely not true that, with long run, and the depletion of glycogen in the fast fibers, we go to activate them to work better. At first, when we run slowly we use essentially Fatty Acids as fuel, and Fast fibers are not activated. It’s not true that, with the turnover of the fibers, when the slow fibers become tired the fast fibers start to work. Instead, it’s true the opposite : when we use essentially the fast fibers, and they become tired, we start to use the slow fibers, obviously reducing the quality of the performance. Fast fibers without glycogen are not able to work, it’s not that are stimulated to work more.
In the case of the basic Lydiard system, probably there was confusion about the increase of speed, because the athletes used very short sprint and exercises of strength endurance during all the season, and for that reason they were able to maintain a high level of speed, of sure not because their long run.