The splits is an impressive feat of flexibility that is beneficial for a wide variety of activities, including ballet, martial arts, gymnastics and yoga. Training to do the splits takes months or even years of practice and intense.
South Korean Flag love the meaning behind it. I've also heard that the short and long lines along with representing the elements also represent the strong protecting the weak and the weak protecting the strong. Like the taegeuk, its all about BALANCE.
Notice the right foot placement. The ankles are locked. The outside of the knees are flush. He pulls the left arm down while raising the head from under the chin. Controlling the width, depth, and height of his opponent.