"Concentration skills" refer to the ability to focus and pay attention to a specific task or activity without getting easily distracted. It involves being able to stay engaged and not letting your mind wander. Full definition
Also, I find that it teaches the athlete better concentration skills with the obvious added bonuses. (strengthsensei.com)
Shooting arrows or aiming stuff at him helps him develop concentration skills while also getting physical activity as he tries to defend himself. (momjunction.com)
Learning physical control is an important developmental step and can help build concentration skills and self - control later on. (kidshealth.org)