Hello Nobby
I hope that i might be polite since we smoke the pipe of peace !
This ST and FT issue and the need of training individualisation is one issue i did debate quite a lot with with John Hadd in private and as you know he died.
First i don´t foget that on other thread that you post and that my nickname is "kaddafii" you did doubt about the of my and John´s attempt of charaterization by fiber type because i got no evidence by biopsy. This is not true either.
Just one parenthesis. What you said on that board (the need of biopsy to define the FT and ST tendency is something i taugh it´s a your curious request that comes from you that i tend to think that in most training aspects and run methodology as well i see you as one "feeling-base type" (smiling). Well i don´t want to go to that Lidy*** discuss...Well you didn´t knew if i have the biopsises or i don´t but on hyour will to prove that i´m wrong...(smilling). Actually you ask for scientific evidence, physiologic prove, it´s all right ! But from You Nobby ? (smile)...
Relate to your question. I say that both, the fiber type and the altitude effect plays a role on east africans. Of course that te altitude plays, because know young and thinn kenyans that are just 17.30 5k with no major reason to be so slow, but just because they are Kenyans from Mombassa (Ucity atg sea leval) and not Rift Valey.
However when i analyse what was been the "friendly" distance training approach from different training systems i guess that it´s not by chance that the japanese for instance they rarely or never did get a very fast/speedy runner as well as the "tons" of mileage that fits well on one japanese runner or that fited on wang Jungia (not relateing with drugs or every other Asian "yellow" type, in my interpretation, and also the phychologic motivation for those people to love long distance training is due to innate (read fiber) ability for that runners train mileage volume and long intervals.
Of course that my analysis is quite empiric if we consider sstematic studies. But let me tell you. I don´t trust in saltin for several reasons that would be too long to write that in detail. But the prime reason of the study you mean is by waht you say "the universe he chooses they are not world top classes, not in Kenya or in Scandinavia, and as you know this is good for the unversities and to edit scientific articles but got no major evidence.
Finnaly long intervals (mostly done at race pace) fits well in everyone, not just east africans or japanese or asians or portuguese. However as John Hadd starts to prove (see the graphics and Hadd conclusion from that article on ouir "2 kind of runners" the FT runner works best with training with more/accentuate the anaerobic percent and short intrevals rather than the ST type fits better with LTp (fast lactate threshold continous runs). I got some private material from John about that fiber issue that i guess he didn´t publish.
You see, i´m more a man of methodolgy, and i got aware that different runners do react diffrent to diffrent kind of training with the condition that the distance training approach for every runner is extensively approach, long, volume, mostly aerobic. But mostly of the training individualisation got to do with different types. As i´m from Portugal and we have been in collonies and we got a mix of runners and a population from different parts of the world, from evefry continent, it´s not hard for me by obervation, to relate different "types" to different on the ancestors. Portugal is a living laboratory for this propose.
Then, when i start to share this my idea with John, it´s when he said he got near the same conclusion, and as he was a man of science as well as a coach he tried to systematized what i know empiric. Then we got pairs of runners people running during the ssme period and with different training profiles from the sasme country. Lopes-Mamede is a evident pair for me. Steve Ovett-Seb Coes is another one. Shorter-Prefontaine is another. Recently Webb-Dan Ritz is another.
I got no scientific ambition. I´consider myself a methdologist, and it´s by the methodology that i got most of my conclusions...and my doubts as well ! I guess that without go out from the methodology we might solve the fiber type question, or if we don´t, at leat we might take some rich contain to the day-by-day training.
What i don´t want is to m ove this debate to the question Rosa versus Renato versus James Li versus other different training method.
ps1 - we´ve got a rich scientific article from Peter Snell about the fiber type and the VO2max that can be one more tool and a starting point to get some curious conclusions.
ps2 - i might say something more about what i know about this, but i also have another neighbour thread here near to me that i want to participate, because i did write something to reply to rekrunner.