Reduction of Heel Slippage of Ladies’ Shoes Applying Dynamic Foot Deformation in Walking

DOI Web Site 5 References
  • NISHIHAMA Rie
    Graduate School of Science and Technology, Keio University
  • YAMAZAKI Nobutoshi
    Department of Mechanical Engineering, Faculty of Science and Technology, Keio University

Bibliographic Information

Other Title
  • 歩行中の足変形を利用した踵ずれ低減パンプス

Abstract

<p>Pumps, one of the most popular types of ladies’ shoes, have a good appearance. However, they sometimes slip off from the heel in walking due to their short insteps. In this study, we attempted to mitigate the slippage of pumps by applying dynamic foot deformation to make them fit better during walking. From the results of gait analyses, we found that the slippage occurred before heel-off. In this period, because the plantar arch is extended, the navicular bone is bulged and the length around the ball-jointed girth is stretched. Therefore, we propose a mechanism for decreasing the slippage using a stiff line, which can fasten the topline of the pumps by applying the stretch of the ball-jointed girth. We tested this by arranging a line between the inner and outer leathers of the pumps, starting from the ball-jointed girth to the topline like a figure-of-α. Using a prototype with of line mechanism, we measured the slippage for 10 feet of 9 female subjects. As a result, for all subjects, the slippage significantly decreased approximately 23% at 50% of the gait cycle. Furthermore we confirmed endurance of the effect after daily use.</p>

Journal

  • Biomechanisms

    Biomechanisms 20 (0), 77-86, 2010

    Society of Biomechanisms

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