Every athlete, better said, every living organism is the result of the genes of his\/her parents. It\u2019s our genetic blueprint, or the \u201cmap\u201d on which we can have an overview where we can go and where not, before we travel. As coaches we spend almost 90% of our time thinking about and tinkering with our programs. That is necessary, absolutely, but in my opinion it equally necessary to look at the individual you are applying this training to. One of the founders of modern medicine Dr. William Osler once stated: \u201cIt is much more important to know what sort of a patient has a disease than what sort of a disease a patient has.\u201d Or in our language: it is more important to know what sort of athlete you want to train than to what kind of training you apply to the athlete.<\/p>\n
Very often we still think along the line of \u201cOne size fits all\u201d. We listen to sport scientists who try to convince us that training method A is better than training method B. In my opinion this is irrelevant, at least for elite athletes. Often we see this in weight loss diets, some people swear by a certain diet, because they lost weight, while others don\u2019t lose weight or even gain weight with the same diet. How can that be? Well it\u2019s simple: the diet fits the genetic blueprint of the people who benefit from it, while the same diet doesn\u2019t work for people who have a different predisposition. Your superfood might be my poison. In training we see the same thing happen all the time: some athletes really benefit from a given program, others don\u2019t or get injured. Again: looking at the genetic blueprint of the athletes might prevent this from happening.<\/p>\n
I have always been interested in the genetic part of sports training but until recently, genetic testing was too expense, and not well established yet. This has now changed.<\/p>\n
So, yes, genetic testing: what speaks against it?
\nI hear a lot of people speak out against genetic testing, at least for athletes.
\nArguments I hear are: \u201cGenes are irrelevant it\u2019s gene expression that is important\u201d . Well expressing genes is what was we already do on a daily base, we call it: training. But what if you don\u2019t have the right genes to express or if you are the expression of the wrong genes? You can\u2019t train a donkey the way you train a racehorse. And from a distance we can see that the donkey has a different genetic make-up from a race horse. In humans is more difficult. From the outside the difference is not as clear as with the donkey and the race horse. We cannot see whether an athlete is born to sprint, to lift, to play soccer or to run the marathon. Winners come in all sizes and types, because performance is complex and there is a lot of room for compensation. A simple example is high jump: being tall is an advantage \u2013 high center of mass. But if you aren\u2019t you might still beat a tall high jumper by e.g. being more explosive or having a better technique. In other words, you (over-)compensate your lack of height. But here is the catch: only if you are suited to be explosive and to train and improve explosiveness. If you are short and not explosive you will have very hard time compensating these two factors by having a better technique. So the jumper who is tall, AND explosive AND has a good technique has the best change to reach the top. Of course you can increase explosiveness a lot, but not everybody to the same extent.<\/p>\n
Another argument is: \u201cGenetic testing is not yet fully developed, we don\u2019t know enough yet, only maybe 1%.\u201d My argument is simple: \u201cthan you wait until we know everything about genes and genetics which might be another 100 years, the choice is yours!\u201d What do we know about the brain or even about the muscle? If you read enough you will see we know surprisingly little about the brain and the muscle. It does not stop us from working with it on a daily basis. I like to work with what we have even it is a little or not enough, as long as what we have is solid enough to work for my practical application.<\/p>\n
Genetic testing will not replace other information I have about the athlete\u2019s structures and functioning, I will just have more information.<\/p>\n
Genetic testing will not test whether you are going to run 9.90 or 9.60 in the 100 meters. Nor will it tell you if you are going to be a top level soccer player. This last one is impossible anyway, because an excellent forward might be a lousy goal keeper, just because the functional demands, and thus the profiles, are so different.
\n\u201cThere are many genes that determine performance\u201d. Absolutely true! Complex factors like speed, endurance or coordination are controlled by hundreds or maybe even thousands of genes. But could that stop us from starting to work with the ones we know? Every journey starts with the first step, and so is the solving of the genetic puzzle. Again, do you want to wait until that whole puzzle is solved? That\u2019s good too!<\/p>\n
As coaches we realize certainty does not exist in elite sports. We are looking at probability, increasing our chances to create successful athletes. We can deal with this uncertainty better than scientists, they only act when things are known (evidence-based). Elite performances let\u2019s say world record levels, are an unexplored territory. Nobody has ever gone there, so nobody has the experience of being there even Usain Bolt doesn\u2019t know what it is to run 9.30. Nobody has the experience, no evidence, so we have to do without, but we can live with that. Basically what we do is \u201cthin slicing\u201d, which is making an adequate judgment about a situation or a person with the least amount of information. (How big, or rather how small a slice of cake do you need to taste in order to know if the cake tastes good or bad?)<\/p>\n
Here is another example: aspirin, who doesn\u2019t know it? In 1898 Felix Hoffman synthesized aspirin, but only in 1971 John Vane won the Nobel Prize for unraveling the mechanism of aspirin (through prostaglandins). Between 1898 and 1971 millions of people took aspirin without having a clue about why it worked. What they knew however, was more important: it worked (and no, not for everybody, and yes, there are side effects and precautions). Lack of scientific knowledge is not always a limitation for the proper use of ideas, tools, techniques or substances.
\nWe limit ourselves to genes we have adequate knowledge of, there is no forecasting of genetic defects leading to pathology. We have doctors for that. We stay away from pathology.<\/p>\n
We cannot monitor training by genetic testing. Our genetic blueprint is rather static and does not change by training. What does change, however, is the gene expression, and in future this will be a valuable tool as well. Genetic testing gives where to go and where not, it can save us from wasting valuable and limited resources like time, energy and money by trial-and-error, or trying to train donkeys thinking we have race horses at hand.<\/p>\n","protected":false},"excerpt":{"rendered":"
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