The goal is to build up flexibility and quickness, two things needed for sumo wrestling.

目标是培养柔韧性和速度，这是相扑需要的两样技能。

As can also be seen in the decline of popularity of sumo wrestling, it speaks to a dwindling interest within Japan towards the more the traditional arts.

从相扑流行度的下降也可以看出，这表明日本国内对传统艺术的兴趣在减小。