At the second season of Sword Art Online we can see Kirito and his sister practicing Kendo:
In this scene, he used a similar fighting style that he used in the game. Is it possible to say that practicing Kendo or other fighting sports could help people in Sword Art Online? I mean, being strong or fast in real life, Did it have some influence in the gameplay at SAO? If so, people like Kirito could have some advantage?