I’m not saying that it can’t be trained. But to what degree? I’m saying that the rate on return, for time invested is very small. Fitness expert Lyle McDonald also says the same thing, and he should know having spent years sprint training for cycling and in line skating. To paraphrase his words…sprint training is a few sporadic hard efforts, interspersed with a lot of sitting around, for not much to show in the way of improvement. But I suppose that in an activity that success or failure can be measured in thousandths of a second, you would be prepared to strive for the slightest of marginal gains. But for another sport / activity, where other factors are more, if not equally as important, I suppose the minimal effective dose would apply, if at all.
Would it be feasible for Farah to spend an inordinate amount of time on his sprinting technique at the expense of other facets of his training? Unlikely. What about a soccer player? Hours on sprint work, at the expense of skills and game play / tactics?
I read a study where it was highlighted that the fastest sprinters in the world were ALWAYS the fastest, growing up, in whatever societal group, they found themselves in (eg school, college, sports teams etc). Training perhaps only played a part in separating them once they had reached the top of the mountain and even then genetics, mind set, etc may have been as much of, if not more of a factor.
The same can be said of other attributes such as VO2 max for distance runners. Trainable? Yes. By much? Probably not.
What about strength for lifters? A recent study, using data from a German gym company, who’s clients all trained in the same HIT fashion, and where data was meticulously kept over a seven year time span, showed that strength gains pretty much topped out after a year, regardless of the individual. To ensure that it wasn’t the style of training that was at fault, this was cross referenced against strength progressions from competing, high level powerlifters, who would use various styles, volumes, methods of training, over the same seven years. Guess what? Their strength levels pretty much topped out after a year also. After that it was marginal gains. We are talking tiny jumps.
It then boils down to how important the activity is to you…