Abstract
Recent developments within genetics are encouraging. Many ill people have already been treated with genetic therapy with positive results and virtually no negative side effects. Parallel to this positive prospect, worries have been expressed about the possible application of the new medical techniques for enhancement purposes. The use of genetic technology in the world of sports has been conceived of as especially problematic, since in some cases it might violate the present ban on gene doping. Gene therapy may be applied to re‐engineer a sportperson's body thereby enhancing athletic performance. This chapter presents a brief account of current discussion on the enhancement of human physical capacities, particularly in (elite) sports. First the natural scientific picture is described, followed by a discussion of the ethical implications of enhancement technologies.