Development of a system to measure radius of curvature and speed of hammer head during turns in hammer throw

von Murofushi, Koji (Autor), ... Sakurai, Shinji (Autor), Umegaki, Koji (Autor), Kobayashi, Kazutoshi (Autor)
Erschienen in International journal of sport and health science, 3 (2005), S. 116-128, Lit.

Analysis of hammer movement based on a parametrically excited pendulum model

von Ohta, Ken (Autor), ... Umegaki, Koji (Autor), Murofushi, Koji (Autor), Luo, ZhiWei (Autor)
Erschienen in Procedia engineering, 2 (2010), 2 (The engineering of sport 8 : engineering emotion), S. 3197-3203, Lit.

Dynamics-based force sensor using accelerometers-application of hammer throw training aid (P37)

von Ohta, Ken (Autor), ... Umegaki, Koji (Autor), Murofushi, Koji (Autor), Komine, Ayako (Autor), Miyaji, Chikara (Autor)
Erschienen in The engineering of sport 7. Volume 1: 7th International Conference on the Engineering of Sport : Paris 2008, Paris: Springer (Verlag), 2008, S. 207-213, Lit.

Reducing the dead zone in the hammer landing sector

von Umegaki, Koji (Autor), ... Murofushi, Koji (Autor), Murofushi, Shigenobu (Autor), Sakurai, Shinji (Autor), Seki, Yukio (Autor), Kimura, Yuji (Autor)
Erschienen in IAAF new studies in athletics, 24 (2009), 2, S. 36-41, Lit.