How much do genetics contribute to the performance of athletes? Or can specific training increase performance for all humans? Are athletes born great or made great?
Scientists have been looking for that key gene for decades. But each time a new gene shows an association with some performance measure, the hypothesis gets thwarted by another. However, there is no doubt that your genetic makeup plays a significant role in sporting performance. By merely looking at the different mammalian species, one sees a diversity of fast runners, runners that have endurance, or those with brut strength. Even within species, there are vast differences: certain horse breeds are fast sprinters, some again known for their endurance ability. The same can be said about the various dog breeds – a grey hound vs. a bull dog. There is something inherent that brings these attributes to the surface, but is still unknown.