You might understand this. Don´t be betrayed by average percent. Do you know that story about the average of 2 people is 3 meals a day, but one did 4 a day and the other just 2. Average equals 3. What I want to say I guess it´s something similar to Renato Canova that the percent of aerobic versus anaerobic for every distance event it´s not correct. For instance same Rui Silva that might run 1500m and finish with something like 55-60% aerobic and 40-45% anaerobic final average result, but during the run both systems are solicited at different percents at different split parts of that same 1500m run. For example at the initial 600m and if the run doesn´t start very fast for him he might split the 600m mark 75% aerobic and 25% anaerobic. At 1100-1200m, 400m or 300m to go, he is something like 55%aerobic 45%anaerobic. At the last 200m to 150m 10om to go, he goes 35-40%aerobic 65-60%anaerobic, this is similar to the aerobic-anaerobic percent that exists in a 600-800m run !
Therefore at this last moment of an 1500m run, the anaerobic system is more solicited that the aerobic, and finally during the final quick he is 30%aerobic 70%anaerobic, something like one 600m or 800m event average.
Similar sitution of the anaerobic increase as the final part of the run approaches, it happens on every middle to long diatnce run, from 800m to the 5k 10k HM marathon. With different final percents, but as far as the run move on the aerobic percent reduces and the anaerobic moves up.
Of course that the basis that able the runner to outquick and speed up the last runs is his aerobic system that is very strong and he runs “tranquil” and in some “comfort “ during the first part of the run, and this is this what permits him speed up the pace in the final part of the run. The better the aerobic capacity, then the smaller the anaerobic contribution at any submaximal pace and you can go faster for any given blood lactate concentration.
However to able this, he needs to exercise by training that transition from aerobic prevalent to anaerobic prevalent. To maximize this potential like one car to run with 2 turbos at maximum power, he needs to train during the same chronologic period both systems adequately. The rich training of that quickly anaerobic versus anaerobic transition, it´s not done if you separate or divide the season periodisation in one early period constituted by aerobic training, that is the aerobic first, and anaerobic late. The Lydiard-soviet periosidation is wrong about that training approach. What is needed is training the aerobic as the training fundamental, but also as soon as possible to introduce fast-anaerobic training, the anaerobic training in progressive dosage.
Progression is the key. . IN THE EARLY STAGE– WORK FROM THE EXTREMES TOWARDS THE MIDDLE. OVERDISTANCE SESSIONS SHOULD BECOME FASTER, WHEREAS UNDERDISTANCE SESSIONS SHOULD BECOME LONGER. TRAINING SHALL BE GO FROM GENERIC TO SPECIFIC, aAND NOT FROM ONE PERIOD OF GENERIC, FOLLOWED BY ANOTHER PERIOD WITH JUST SPECIFIC.
Progressive dosage doesn´t mean from easy anaerobic to fast anaerobic, it means from less frequency, less number of sessions, to more number of sessions, from less anaerobic training total volume to high anaerobic total volume. This is why the typical Lydiard method with one early aerobic season block flowed by anaerobic block, it´s not as productive as mix-up and introduce n parsimony dosage anaerobic training in every block.
Once again. Rui Silva is a 1:44 something like the same 1:44 Peter Snell also did, but he is a 3:30 runner that got the ability to run in 3:28, but as his main goal when he was an olympic was just classification on big games and not chrono results when Peter Snell being much faster than Rui did a slower 1500m performance. The same with most of the Lydiard runners. They got poor index/ratio of resistant related to other training methods and the reason it´s not because they aren´t faster in short runs or they got no good aerobic condition. The reason it´s because they run with the aerobic system mostly and his second “turbo” that is the anaerobic system is not as efficient as should be, because they exercise it only during one very short limited period.
The Lydiard-Soviet system of periodisation is not right. The anaerobic training, might be introduced with the aerobic training during the same micro cycles and mesocycle on every phase of the season training process, with adequate need of recover and regeneration eventually.
Finally about Rui again. I Suppose the test data is correct. I repeat, if is correct, and I think so, it´s done by the portuguese best physiologists and by the protocol assistance of Madame Veronique Billat.
The interesting one data that I interpret is that measure of any physiological capacity just discriminate between athletes of wide ability ranges. It does not discriminate between a relatively homogeneous group of elite athletes in the same sport. I take a second interesting conclusion from the Rui´s data. The top shape condition, the best season moment of shape condition that is shoed by the runner performance during that period, as Rui showed on with his borze medal in Athens Olympics, however the physiologic data doesn´t show that shape improve. Physiologic test data doesn´t prove great thing. Tests are useless to fine grain of consideration.