Όχι επιστήμονας είμαι, έχω διαβάσειHere are some ballpark figures on heritability of athletic traits. The higher the heritability, the more you can blame genes, rather than training, for the difference between a couch potato and a star athlete.Aerobic fitness: about 40-50% heritableStrength and muscle mass: about 50-60% heritableYour mix of “slow twitch” and “fast twitch” muscle fibers (basically, whether your muscles are better at endurance or sprinting): about 45% heritableHeight: about 80% heritableCompeting in sports, at all: 66% heritable.Trainability itself has a genetic factor, too. If you and your gym buddy follow the exact same program, starting at the exact same fitness level, one of you might end up stronger than the other.