Coactivation of the Flexor Muscles as a Synergist with the Extensors during Ballistic Finger Extension Movement in Trained Kendo and Karate Athletes - Lee, J -B; Matsumoto, T; Othman, T; Yamauchi, M; Taimura, A; Kaneda, E; Ohwatari, N; Kosaka, M (International Journal of Sports Medicine, 1999)