At which stage do athletes have the most genetic factors?

Elementary. In the selection of athletes, the genetic factors in the primary stage are more important, advanced, intermediate and primary, 1. The connotation of scientific material selection is to adopt scientific, systematic and refined methods and means for athletes with certain sports talents based on their physiological, psychological and genetic functions. 2. The importance and urgency of scientific material selection, as a sports power, has benefited from the fact that sports schools at all levels have been owned by our country for a long time. However, sports itself also exposes some shortcomings, such as training. 3. Scientific selection runs through the whole training process. Judging from the development trend of competitive sports, scientific selection, scientific training and scientific management have become the three major factors restricting the development of modern sports. Scientific means and methods are used for scientific material selection.