- 一般社団法人 日本機械学会
- ジョイント・シンポジウム講演論文集:スポーツ工学シンポジウム:シンポジウム:ヒューマン・ダイナミックス 2005 (ISSN:24331309)
- pp.66-69, 2005-09-10 (Released:2017-08-01)
Exactly speaking, requirement properties in running shoes depend on the condition. Here, the condition indicates the runner's skill and running velocity. In the designing of running shoes for high speed, sole bending and torsional module are very important. Because large sole deformation causes energy loss in contact phase. In this study, propulsion efficiency calculated by the horizontal ground reaction force in running is proposed. The reduction in the propulsion efficiency is very effective for high speed running. The propulsion efficiency depends on the sole stiffness. In order to evaluate the propulsion efficiency, sole stiffness evaluation method based on eigenvalue analysis is introduced. After checking of the validity, the practical deigning of running shoes for high speed running is indicated.