Yuki Kusagawa is Graduate Student in Graduate School of Sports and Health Science of Ritsumeikan University, and his research manuscript was accepted and published in The Journal of Foot and Ankle Research, which collaborated with Tadao Isaka (Professor in Faculty of SHS), Hiroaki Kanehisa (Professor in Faculty of SHS), Toshiyuki Kurihara (Associate Professor in Research Organization of Science and Technology), Sumiaki Maeo (Senior Researcher in Research Organization of Science and Technology), Takashi Sugiyama (Senior Researcher in Global Innovation Research Organization), and Aiko Imai (Graduate Student in Graduate School of SHS). The study revealed that toe flexor strength positively correlates with comfortable walking speed in older women with pronated/supinated foot, but not in older women with neutral foot.

Yuki Kusagawa, Toshiyuki Kurihara, Aiko Imai, Sumiaki Maeo, Takashi Sugiyama, Hiroaki Kanehisa & Tadao Isaka. (2020). Toe flexor strength is associated with mobility in older adults with pronated and supinated feet but not with neutral feet. J Foot Ankle Res, 13;55.