全速疾走における足先の動きの型について

概要

論文の詳細を見る
The Purpose of this study was to know the individual differences in the motion pattern of the toe point during running at maximum speed each an age bracket. Four subjects were employed in this study. (Table1) Running was performed in the light ground and the dark ground. The light-trace photographs of the tip of toe were collected by means of an ordinary camera with a telephoto-lens, and a black and white 35mm film. Moreover a stroboscope and a V. T. R. were used jointly with them and the stroboscope light-trace was interrupted every 1/30 second. A small lamp was fixed on the tip of the toe. The ypical photographs were shown in Fig. 2. From those photographs, the vertical displacement of the toe point, the duration time of one cycle (the step frequency), the step length, and the foot speed were caluculated at maximum speed of running. The results were as follows; 1. Towards older subject, the step frequency was frequent, the ratio of the step length was lengthened, vertical displacements of the toe point became larger and the motion of the foot became faster. 2. When the older subject struck his foot on the ground, the swing leg was carried more nearly towards the support leg. On the contrary, the infant subject remained his swing leg behind the body at the same instant. 3. At the instant when the toe exerted the maximum force against the ground, the older subject carried his knee joint of the swing leg upward in front of the body. But the infant subject kept his swing leg near the support leg.
木更津工業高等専門学校の論文

全速疾走における足先の動きの型について

スポンサーリンク

概要

著者

関連論文

スポンサーリンク