One theory says that the reason why Gi was replaced by Hane was that the martial art, dance or game of kicking a laced or fletched weight was imported from China, and was blended together with Gi-Cho in Japan, and then present-day Hanetsuki was formed.
一説には毬が羽に変化したのは、紐や羽のついた分銅を蹴る武術や舞や遊びが中国から伝わり、日本の毬杖と渾然一体となり現在の羽根突きになったとも言われる。