Good blood cannot lie. In the field of sport, the maxim is checked regularly. Leo, the son of Björn Borg, seems to be well on your way to knowing the fate of his father. It has won for the second time this summer, the championship Swedish tennis under 16 years of age. To 8 years of age, Cristiano Ronaldo Jr, who, like his father, moves to Juventus Turin, and increases the performance.

to See VIDEO. The prowess of the son of Cristiano Ronaldo !

Son of the legendary Michael Schumacher, Mick “Schumi Junior” won the title of European champion of Formula 3 to 19 years old. The two young basketteuses Marine Fauthoux and Iliana Rupert (who just made their debut in the 1st League women) are other recent examples.

also Read Mick Schumacher, the champion of the F3, on the footsteps of his father

heritability of an olympic medal

But is it a few isolated cases and high profile in the media, or the fact of having a champion, or a champion in the family increases its own chances of achieving a new feat ? This is the question to which attempted to answer researchers at the Irmes (biomedical research Institute and the epidemiology of sport)*. Their study, led by Juliana Antero and published in the journal Frontiers in Physiology , has focused on the heritability of the high performance sports. A subject the importance of which had never been quantified before.

To assess the benefits of this descent, the scientists have measured the probability of winning an olympic medal for the 125 000 athletes who participated in the Games (summer and winter) since 1896. They have confirmed 5 661 links of kinship between these olympians and highlighted that the nieces or nephews, children or grandchildren, brothers or sisters, and the twin or the twin of former olympic medalists are more likely to be on the podium as athletes without a family. In practice, three elements increase the probability of being an olympic medallist. First of all, the genetic relationship with a former winner (twin/twin > sisters/brothers – > daughters/sons > nieces/nephews > grandchildren). Then, the time between their participation in the Games : it is better that it is low. Finally, sports must be close, or even identical.

Contribution of genomics

The authors also note that the advantage of the ties of kinship increases currently, as we approach the limits of human. “The performance is the result of an interaction between genetic predispositions and environmental conditions “, they write. These analyses thus reveal the importance of the contribution of genomics to the heritability of an olympic medal (measured to 20.5 % among the athletes of this level), even if one does not yet know all the genes or clusters responsible “. They finally showed that this effect, deliberate or not, continues to strengthen in the course of olympic history. Olympism is thus ” a large family “…

* EA 7329 of the university of Paris-Descartes associated with the Insep (Institut national du sport, expertise and performance), the ministry of Sports and the AP-HP (Assistance publique-Hôpitaux de Paris

On the same topic VIDEO. The prowess of the son of Cristiano Ronaldo !