抄録
The purpose of this study is to evaluate from the side of utilization of the elastic energy by performing ankle jump to diagonal course while wearing sprint spike shoes and quantifying the elastic energy of the crural muscle-tendon complex . For these purposes, subjects performed a planter flexion jump (PFJ), a counter movement jump (CMJ), and a drop jump (DJ) using a slider seat system developed in this study, while wearing the several spike shoes. Furthermore in this study, we estimated the spring constant by performing ankle jump to vertical course. According the result, the increasing ratio of mechanical power was significantly correlated to the contribution of elastic energy and was observed that a ratio of LEMG of dorsal flexion for iEMG of plantar flexion is stabilizing in Long-plate type spike shoes. This result suggest that Long-plate type spike shoes may demonstrate high performance in the actual race.
