Abstract
We have carried out the concurrent optimization of discus. The optimization of both skill and equipment is carried out using a genetic algorithm. Discus throwers develop and adjust their skills depending on the discus used. The optimal skill is applicable to the discuses used in their training and those used in competitions. However, the performance could be maximized if the skill and the equipment are simultaneously optimized.
In this optimization, several visualizing techniques were used. They were PIV, smoke observations, self-organizing maps and the animation. These techniques are introduced.
