Junjiro Kubo, Koji Kobayashi. Effect of Kumikata on Grip Strength and Pinch Strength of Male University Judoka. The Arts and Sciences of Judo. 2022. 2. 2. 52-55
JUNJIRO KUBO, KEIICHI TAMAKI, HIDEYUKI ARIKAWA. Effects of practice frequency on the physical fitness profile of Talent Identification in fourth graders practicing soccer and swimming. Journal of Physical Education and Sport. 2022. 22. 7. 1792-1798
Kubo, Junjiro, Nishikawa, Seidai, Morioka, Yasunori, Arikawa, Hideyuki, Tamaki, Keiichi. Effects of Birth Month on Talent Identification Participation and the Identification Process in Sports. Topics in Exercise Science and Kinesiology. 2021. 2. 1
久保 潤二郎, 柳田 信也, 関口 遵, 水國 照充. 学びに圧力は必要か? : 学生の自発的な学びの促進に向けて-Is pressure a necessary facet of learning? : In preparation for promoting spontaneous student learning. 平成国際大学スポーツ科学研究所所報 = The journal of Research Institute of Sports Science, Heisei International University. 2019. 14. 11-17