*Takako Hiwa¹, Shoko Inoue², Ryo Matsuura³, Kiyonao Hasegawa⁴ (1. Niigata University, 2. Graduate school of modern society and culture, Niigata University, 3. Graduate School of Comprehensive Human Sciences,University of Tsukuba, 4. Association of Japan G-ball)

*Shoko Inoue¹, Takako Hiwa² (1. Niigata University Graduate School, 2. Niigata Univ.)

*Maki Ito¹ (1. Shizuoka Sangyo University)